{"items":[{"id":"NVI-00003763","kind":"vulnerability","title":"Laravel Framework XSS in Blade templating engine","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-66hf-2p6w-jqfw","CVE-2021-43808"],"plain_summary":"OSV carries this publisher advisory for laravel/framework, laravel/framework, laravel/framework, illuminate/view, illuminate/view. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 6.20.42 for laravel/framework. Confirm the publisher’s latest guidance.","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 7.30.6 for laravel/framework. Confirm the publisher’s latest guidance.","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 8.75.0 for laravel/framework. Confirm the publisher’s latest guidance.","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 6.20.42 for illuminate/view. Confirm the publisher’s latest guidance.","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 7.30.6 for illuminate/view. Confirm the publisher’s latest guidance.","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 8.75.0 for illuminate/view. Confirm the publisher’s latest guidance.","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-af9615f42f6e088f761471ca82461ea5"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-06-17T04:11:28.820Z","value":"4.3 MEDIUM (2.0)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-337b803ca740997d0bd9f8164cdc0579"},{"kind":"CVSS","as_of":"2026-06-17T04:11:28.820Z","value":"5.3 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-337b803ca740997d0bd9f8164cdc0579"},{"kind":"CVSS","as_of":"2026-06-17T04:11:28.820Z","value":"6.1 MEDIUM (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-337b803ca740997d0bd9f8164cdc0579"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.825%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.57417. Missing scores are unknown.","source_id":"sr-af9615f42f6e088f761471ca82461ea5"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-4a0aaf8de7f40a223e90c286a2ba3cad","url":"https://github.com/advisories/GHSA-66hf-2p6w-jqfw","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-66hf-2p6w-jqfw","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.931Z"},{"id":"sr-337b803ca740997d0bd9f8164cdc0579","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43808","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2021-43808","publisher":"NIST National Vulnerability Database","observed_at":"2026-10-31T23:13:56.182Z"},{"id":"sr-af9615f42f6e088f761471ca82461ea5","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2021-43808","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:03.704Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"technology":"laravel/framework","known_exclusions":[],"conditions_summary":"A security researcher has disclosed a possible XSS vulnerability in the Blade templating engine.\n\nGiven the following two Blade templates:\n\nresources/views/parent.blade.php:\n\n```html\n@section('content')\n\n@show\n```\n\nresources/views/child.blade.php:\n\n```html\n@extends('parent')\n\n@section('content')\n\n@endsection\n```\n\nAnd a route like the following:\n\n```php\nRoute::get('/example', function() {\n    $value = '//localhost/###parent-placeholder-040f06fd774092478d450774f5ba30c5da78acc8## onclick=location.assign(this.value);//';\n\n    return view('child', ['value' => $value]);\n});\n```\n\nThe broken HTML element may be clicked and the user is taken to another location in their browser due to XSS. This is due to the user being able to guess the parent placeholder SHA-1 hash by trying common names of sections. If the parent template contains an exploitable HTML structure an XSS vulnerability can be exposed.\n\nThis vulnerability has been patched by determining the parent placeholder at runtime and using a random hash that is unique to each request.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 6.20.42"]},{"certainty":"source_listed","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"technology":"laravel/framework","known_exclusions":[],"conditions_summary":"A security researcher has disclosed a possible XSS vulnerability in the Blade templating engine.\n\nGiven the following two Blade templates:\n\nresources/views/parent.blade.php:\n\n```html\n@section('content')\n\n@show\n```\n\nresources/views/child.blade.php:\n\n```html\n@extends('parent')\n\n@section('content')\n\n@endsection\n```\n\nAnd a route like the following:\n\n```php\nRoute::get('/example', function() {\n    $value = '//localhost/###parent-placeholder-040f06fd774092478d450774f5ba30c5da78acc8## onclick=location.assign(this.value);//';\n\n    return view('child', ['value' => $value]);\n});\n```\n\nThe broken HTML element may be clicked and the user is taken to another location in their browser due to XSS. This is due to the user being able to guess the parent placeholder SHA-1 hash by trying common names of sections. If the parent template contains an exploitable HTML structure an XSS vulnerability can be exposed.\n\nThis vulnerability has been patched by determining the parent placeholder at runtime and using a random hash that is unique to each request.","public_affected_ranges":["ECOSYSTEM: introduced 7.0.0; fixed 7.30.6"]},{"certainty":"source_listed","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"technology":"laravel/framework","known_exclusions":[],"conditions_summary":"A security researcher has disclosed a possible XSS vulnerability in the Blade templating engine.\n\nGiven the following two Blade templates:\n\nresources/views/parent.blade.php:\n\n```html\n@section('content')\n\n@show\n```\n\nresources/views/child.blade.php:\n\n```html\n@extends('parent')\n\n@section('content')\n\n@endsection\n```\n\nAnd a route like the following:\n\n```php\nRoute::get('/example', function() {\n    $value = '//localhost/###parent-placeholder-040f06fd774092478d450774f5ba30c5da78acc8## onclick=location.assign(this.value);//';\n\n    return view('child', ['value' => $value]);\n});\n```\n\nThe broken HTML element may be clicked and the user is taken to another location in their browser due to XSS. This is due to the user being able to guess the parent placeholder SHA-1 hash by trying common names of sections. If the parent template contains an exploitable HTML structure an XSS vulnerability can be exposed.\n\nThis vulnerability has been patched by determining the parent placeholder at runtime and using a random hash that is unique to each request.","public_affected_ranges":["ECOSYSTEM: introduced 8.0.0; fixed 8.75.0"]},{"certainty":"source_listed","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"technology":"illuminate/view","known_exclusions":[],"conditions_summary":"A security researcher has disclosed a possible XSS vulnerability in the Blade templating engine.\n\nGiven the following two Blade templates:\n\nresources/views/parent.blade.php:\n\n```html\n@section('content')\n\n@show\n```\n\nresources/views/child.blade.php:\n\n```html\n@extends('parent')\n\n@section('content')\n\n@endsection\n```\n\nAnd a route like the following:\n\n```php\nRoute::get('/example', function() {\n    $value = '//localhost/###parent-placeholder-040f06fd774092478d450774f5ba30c5da78acc8## onclick=location.assign(this.value);//';\n\n    return view('child', ['value' => $value]);\n});\n```\n\nThe broken HTML element may be clicked and the user is taken to another location in their browser due to XSS. This is due to the user being able to guess the parent placeholder SHA-1 hash by trying common names of sections. If the parent template contains an exploitable HTML structure an XSS vulnerability can be exposed.\n\nThis vulnerability has been patched by determining the parent placeholder at runtime and using a random hash that is unique to each request.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 6.20.42"]},{"certainty":"source_listed","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"technology":"illuminate/view","known_exclusions":[],"conditions_summary":"A security researcher has disclosed a possible XSS vulnerability in the Blade templating engine.\n\nGiven the following two Blade templates:\n\nresources/views/parent.blade.php:\n\n```html\n@section('content')\n\n@show\n```\n\nresources/views/child.blade.php:\n\n```html\n@extends('parent')\n\n@section('content')\n\n@endsection\n```\n\nAnd a route like the following:\n\n```php\nRoute::get('/example', function() {\n    $value = '//localhost/###parent-placeholder-040f06fd774092478d450774f5ba30c5da78acc8## onclick=location.assign(this.value);//';\n\n    return view('child', ['value' => $value]);\n});\n```\n\nThe broken HTML element may be clicked and the user is taken to another location in their browser due to XSS. This is due to the user being able to guess the parent placeholder SHA-1 hash by trying common names of sections. If the parent template contains an exploitable HTML structure an XSS vulnerability can be exposed.\n\nThis vulnerability has been patched by determining the parent placeholder at runtime and using a random hash that is unique to each request.","public_affected_ranges":["ECOSYSTEM: introduced 7.0.0; fixed 7.30.6"]},{"certainty":"source_listed","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"technology":"illuminate/view","known_exclusions":[],"conditions_summary":"A security researcher has disclosed a possible XSS vulnerability in the Blade templating engine.\n\nGiven the following two Blade templates:\n\nresources/views/parent.blade.php:\n\n```html\n@section('content')\n\n@show\n```\n\nresources/views/child.blade.php:\n\n```html\n@extends('parent')\n\n@section('content')\n\n@endsection\n```\n\nAnd a route like the following:\n\n```php\nRoute::get('/example', function() {\n    $value = '//localhost/###parent-placeholder-040f06fd774092478d450774f5ba30c5da78acc8## onclick=location.assign(this.value);//';\n\n    return view('child', ['value' => $value]);\n});\n```\n\nThe broken HTML element may be clicked and the user is taken to another location in their browser due to XSS. This is due to the user being able to guess the parent placeholder SHA-1 hash by trying common names of sections. If the parent template contains an exploitable HTML structure an XSS vulnerability can be exposed.\n\nThis vulnerability has been patched by determining the parent placeholder at runtime and using a random hash that is unique to each request.","public_affected_ranges":["ECOSYSTEM: introduced 8.0.0; fixed 8.75.0"]}],"null_published_at":"2026-11-05T03:52:54.771Z","source_updated_at":"2026-07-08T06:27:53.544Z","source_disclosed_at":"2021-12-08T19:57:36.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:41:59.931Z"},{"id":"NVI-00003763","kind":"vulnerability","title":"Laravel Framework XSS in Blade templating engine","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-66hf-2p6w-jqfw","CVE-2021-43808"],"plain_summary":"OSV carries this publisher advisory for laravel/framework, laravel/framework, laravel/framework, illuminate/view, illuminate/view. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 6.20.42 for laravel/framework. Confirm the publisher’s latest guidance.","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 7.30.6 for laravel/framework. Confirm the publisher’s latest guidance.","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 8.75.0 for laravel/framework. Confirm the publisher’s latest guidance.","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 6.20.42 for illuminate/view. Confirm the publisher’s latest guidance.","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 7.30.6 for illuminate/view. Confirm the publisher’s latest guidance.","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 8.75.0 for illuminate/view. Confirm the publisher’s latest guidance.","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-337b803ca740997d0bd9f8164cdc0579"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-06-17T04:11:28.820Z","value":"4.3 MEDIUM (2.0)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-337b803ca740997d0bd9f8164cdc0579"},{"kind":"CVSS","as_of":"2026-06-17T04:11:28.820Z","value":"5.3 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-337b803ca740997d0bd9f8164cdc0579"},{"kind":"CVSS","as_of":"2026-06-17T04:11:28.820Z","value":"6.1 MEDIUM (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-337b803ca740997d0bd9f8164cdc0579"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-4a0aaf8de7f40a223e90c286a2ba3cad","url":"https://github.com/advisories/GHSA-66hf-2p6w-jqfw","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-66hf-2p6w-jqfw","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.931Z"},{"id":"sr-337b803ca740997d0bd9f8164cdc0579","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43808","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2021-43808","publisher":"NIST National Vulnerability Database","observed_at":"2026-10-31T23:13:56.182Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"technology":"laravel/framework","known_exclusions":[],"conditions_summary":"A security researcher has disclosed a possible XSS vulnerability in the Blade templating engine.\n\nGiven the following two Blade templates:\n\nresources/views/parent.blade.php:\n\n```html\n@section('content')\n\n@show\n```\n\nresources/views/child.blade.php:\n\n```html\n@extends('parent')\n\n@section('content')\n\n@endsection\n```\n\nAnd a route like the following:\n\n```php\nRoute::get('/example', function() {\n    $value = '//localhost/###parent-placeholder-040f06fd774092478d450774f5ba30c5da78acc8## onclick=location.assign(this.value);//';\n\n    return view('child', ['value' => $value]);\n});\n```\n\nThe broken HTML element may be clicked and the user is taken to another location in their browser due to XSS. This is due to the user being able to guess the parent placeholder SHA-1 hash by trying common names of sections. If the parent template contains an exploitable HTML structure an XSS vulnerability can be exposed.\n\nThis vulnerability has been patched by determining the parent placeholder at runtime and using a random hash that is unique to each request.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 6.20.42"]},{"certainty":"source_listed","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"technology":"laravel/framework","known_exclusions":[],"conditions_summary":"A security researcher has disclosed a possible XSS vulnerability in the Blade templating engine.\n\nGiven the following two Blade templates:\n\nresources/views/parent.blade.php:\n\n```html\n@section('content')\n\n@show\n```\n\nresources/views/child.blade.php:\n\n```html\n@extends('parent')\n\n@section('content')\n\n@endsection\n```\n\nAnd a route like the following:\n\n```php\nRoute::get('/example', function() {\n    $value = '//localhost/###parent-placeholder-040f06fd774092478d450774f5ba30c5da78acc8## onclick=location.assign(this.value);//';\n\n    return view('child', ['value' => $value]);\n});\n```\n\nThe broken HTML element may be clicked and the user is taken to another location in their browser due to XSS. This is due to the user being able to guess the parent placeholder SHA-1 hash by trying common names of sections. If the parent template contains an exploitable HTML structure an XSS vulnerability can be exposed.\n\nThis vulnerability has been patched by determining the parent placeholder at runtime and using a random hash that is unique to each request.","public_affected_ranges":["ECOSYSTEM: introduced 7.0.0; fixed 7.30.6"]},{"certainty":"source_listed","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"technology":"laravel/framework","known_exclusions":[],"conditions_summary":"A security researcher has disclosed a possible XSS vulnerability in the Blade templating engine.\n\nGiven the following two Blade templates:\n\nresources/views/parent.blade.php:\n\n```html\n@section('content')\n\n@show\n```\n\nresources/views/child.blade.php:\n\n```html\n@extends('parent')\n\n@section('content')\n\n@endsection\n```\n\nAnd a route like the following:\n\n```php\nRoute::get('/example', function() {\n    $value = '//localhost/###parent-placeholder-040f06fd774092478d450774f5ba30c5da78acc8## onclick=location.assign(this.value);//';\n\n    return view('child', ['value' => $value]);\n});\n```\n\nThe broken HTML element may be clicked and the user is taken to another location in their browser due to XSS. This is due to the user being able to guess the parent placeholder SHA-1 hash by trying common names of sections. If the parent template contains an exploitable HTML structure an XSS vulnerability can be exposed.\n\nThis vulnerability has been patched by determining the parent placeholder at runtime and using a random hash that is unique to each request.","public_affected_ranges":["ECOSYSTEM: introduced 8.0.0; fixed 8.75.0"]},{"certainty":"source_listed","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"technology":"illuminate/view","known_exclusions":[],"conditions_summary":"A security researcher has disclosed a possible XSS vulnerability in the Blade templating engine.\n\nGiven the following two Blade templates:\n\nresources/views/parent.blade.php:\n\n```html\n@section('content')\n\n@show\n```\n\nresources/views/child.blade.php:\n\n```html\n@extends('parent')\n\n@section('content')\n\n@endsection\n```\n\nAnd a route like the following:\n\n```php\nRoute::get('/example', function() {\n    $value = '//localhost/###parent-placeholder-040f06fd774092478d450774f5ba30c5da78acc8## onclick=location.assign(this.value);//';\n\n    return view('child', ['value' => $value]);\n});\n```\n\nThe broken HTML element may be clicked and the user is taken to another location in their browser due to XSS. This is due to the user being able to guess the parent placeholder SHA-1 hash by trying common names of sections. If the parent template contains an exploitable HTML structure an XSS vulnerability can be exposed.\n\nThis vulnerability has been patched by determining the parent placeholder at runtime and using a random hash that is unique to each request.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 6.20.42"]},{"certainty":"source_listed","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"technology":"illuminate/view","known_exclusions":[],"conditions_summary":"A security researcher has disclosed a possible XSS vulnerability in the Blade templating engine.\n\nGiven the following two Blade templates:\n\nresources/views/parent.blade.php:\n\n```html\n@section('content')\n\n@show\n```\n\nresources/views/child.blade.php:\n\n```html\n@extends('parent')\n\n@section('content')\n\n@endsection\n```\n\nAnd a route like the following:\n\n```php\nRoute::get('/example', function() {\n    $value = '//localhost/###parent-placeholder-040f06fd774092478d450774f5ba30c5da78acc8## onclick=location.assign(this.value);//';\n\n    return view('child', ['value' => $value]);\n});\n```\n\nThe broken HTML element may be clicked and the user is taken to another location in their browser due to XSS. This is due to the user being able to guess the parent placeholder SHA-1 hash by trying common names of sections. If the parent template contains an exploitable HTML structure an XSS vulnerability can be exposed.\n\nThis vulnerability has been patched by determining the parent placeholder at runtime and using a random hash that is unique to each request.","public_affected_ranges":["ECOSYSTEM: introduced 7.0.0; fixed 7.30.6"]},{"certainty":"source_listed","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"technology":"illuminate/view","known_exclusions":[],"conditions_summary":"A security researcher has disclosed a possible XSS vulnerability in the Blade templating engine.\n\nGiven the following two Blade templates:\n\nresources/views/parent.blade.php:\n\n```html\n@section('content')\n\n@show\n```\n\nresources/views/child.blade.php:\n\n```html\n@extends('parent')\n\n@section('content')\n\n@endsection\n```\n\nAnd a route like the following:\n\n```php\nRoute::get('/example', function() {\n    $value = '//localhost/###parent-placeholder-040f06fd774092478d450774f5ba30c5da78acc8## onclick=location.assign(this.value);//';\n\n    return view('child', ['value' => $value]);\n});\n```\n\nThe broken HTML element may be clicked and the user is taken to another location in their browser due to XSS. This is due to the user being able to guess the parent placeholder SHA-1 hash by trying common names of sections. If the parent template contains an exploitable HTML structure an XSS vulnerability can be exposed.\n\nThis vulnerability has been patched by determining the parent placeholder at runtime and using a random hash that is unique to each request.","public_affected_ranges":["ECOSYSTEM: introduced 8.0.0; fixed 8.75.0"]}],"null_published_at":"2026-11-01T01:04:01.279Z","source_updated_at":"2026-07-08T06:27:53.544Z","source_disclosed_at":"2021-12-08T19:57:36.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:41:59.931Z"},{"id":"NVI-00003763","kind":"vulnerability","title":"Laravel Framework XSS in Blade templating engine","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-66hf-2p6w-jqfw","CVE-2021-43808"],"plain_summary":"OSV carries this publisher advisory for laravel/framework, laravel/framework, laravel/framework, illuminate/view, illuminate/view. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 6.20.42 for laravel/framework. Confirm the publisher’s latest guidance.","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 7.30.6 for laravel/framework. Confirm the publisher’s latest guidance.","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 8.75.0 for laravel/framework. Confirm the publisher’s latest guidance.","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 6.20.42 for illuminate/view. Confirm the publisher’s latest guidance.","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 7.30.6 for illuminate/view. Confirm the publisher’s latest guidance.","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 8.75.0 for illuminate/view. Confirm the publisher’s latest guidance.","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-4a0aaf8de7f40a223e90c286a2ba3cad","url":"https://github.com/advisories/GHSA-66hf-2p6w-jqfw","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-66hf-2p6w-jqfw","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.931Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"technology":"laravel/framework","known_exclusions":[],"conditions_summary":"A security researcher has disclosed a possible XSS vulnerability in the Blade templating engine.\n\nGiven the following two Blade templates:\n\nresources/views/parent.blade.php:\n\n```html\n@section('content')\n\n@show\n```\n\nresources/views/child.blade.php:\n\n```html\n@extends('parent')\n\n@section('content')\n\n@endsection\n```\n\nAnd a route like the following:\n\n```php\nRoute::get('/example', function() {\n    $value = '//localhost/###parent-placeholder-040f06fd774092478d450774f5ba30c5da78acc8## onclick=location.assign(this.value);//';\n\n    return view('child', ['value' => $value]);\n});\n```\n\nThe broken HTML element may be clicked and the user is taken to another location in their browser due to XSS. This is due to the user being able to guess the parent placeholder SHA-1 hash by trying common names of sections. If the parent template contains an exploitable HTML structure an XSS vulnerability can be exposed.\n\nThis vulnerability has been patched by determining the parent placeholder at runtime and using a random hash that is unique to each request.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 6.20.42"]},{"certainty":"source_listed","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"technology":"laravel/framework","known_exclusions":[],"conditions_summary":"A security researcher has disclosed a possible XSS vulnerability in the Blade templating engine.\n\nGiven the following two Blade templates:\n\nresources/views/parent.blade.php:\n\n```html\n@section('content')\n\n@show\n```\n\nresources/views/child.blade.php:\n\n```html\n@extends('parent')\n\n@section('content')\n\n@endsection\n```\n\nAnd a route like the following:\n\n```php\nRoute::get('/example', function() {\n    $value = '//localhost/###parent-placeholder-040f06fd774092478d450774f5ba30c5da78acc8## onclick=location.assign(this.value);//';\n\n    return view('child', ['value' => $value]);\n});\n```\n\nThe broken HTML element may be clicked and the user is taken to another location in their browser due to XSS. This is due to the user being able to guess the parent placeholder SHA-1 hash by trying common names of sections. If the parent template contains an exploitable HTML structure an XSS vulnerability can be exposed.\n\nThis vulnerability has been patched by determining the parent placeholder at runtime and using a random hash that is unique to each request.","public_affected_ranges":["ECOSYSTEM: introduced 7.0.0; fixed 7.30.6"]},{"certainty":"source_listed","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"technology":"laravel/framework","known_exclusions":[],"conditions_summary":"A security researcher has disclosed a possible XSS vulnerability in the Blade templating engine.\n\nGiven the following two Blade templates:\n\nresources/views/parent.blade.php:\n\n```html\n@section('content')\n\n@show\n```\n\nresources/views/child.blade.php:\n\n```html\n@extends('parent')\n\n@section('content')\n\n@endsection\n```\n\nAnd a route like the following:\n\n```php\nRoute::get('/example', function() {\n    $value = '//localhost/###parent-placeholder-040f06fd774092478d450774f5ba30c5da78acc8## onclick=location.assign(this.value);//';\n\n    return view('child', ['value' => $value]);\n});\n```\n\nThe broken HTML element may be clicked and the user is taken to another location in their browser due to XSS. This is due to the user being able to guess the parent placeholder SHA-1 hash by trying common names of sections. If the parent template contains an exploitable HTML structure an XSS vulnerability can be exposed.\n\nThis vulnerability has been patched by determining the parent placeholder at runtime and using a random hash that is unique to each request.","public_affected_ranges":["ECOSYSTEM: introduced 8.0.0; fixed 8.75.0"]},{"certainty":"source_listed","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"technology":"illuminate/view","known_exclusions":[],"conditions_summary":"A security researcher has disclosed a possible XSS vulnerability in the Blade templating engine.\n\nGiven the following two Blade templates:\n\nresources/views/parent.blade.php:\n\n```html\n@section('content')\n\n@show\n```\n\nresources/views/child.blade.php:\n\n```html\n@extends('parent')\n\n@section('content')\n\n@endsection\n```\n\nAnd a route like the following:\n\n```php\nRoute::get('/example', function() {\n    $value = '//localhost/###parent-placeholder-040f06fd774092478d450774f5ba30c5da78acc8## onclick=location.assign(this.value);//';\n\n    return view('child', ['value' => $value]);\n});\n```\n\nThe broken HTML element may be clicked and the user is taken to another location in their browser due to XSS. This is due to the user being able to guess the parent placeholder SHA-1 hash by trying common names of sections. If the parent template contains an exploitable HTML structure an XSS vulnerability can be exposed.\n\nThis vulnerability has been patched by determining the parent placeholder at runtime and using a random hash that is unique to each request.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 6.20.42"]},{"certainty":"source_listed","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"technology":"illuminate/view","known_exclusions":[],"conditions_summary":"A security researcher has disclosed a possible XSS vulnerability in the Blade templating engine.\n\nGiven the following two Blade templates:\n\nresources/views/parent.blade.php:\n\n```html\n@section('content')\n\n@show\n```\n\nresources/views/child.blade.php:\n\n```html\n@extends('parent')\n\n@section('content')\n\n@endsection\n```\n\nAnd a route like the following:\n\n```php\nRoute::get('/example', function() {\n    $value = '//localhost/###parent-placeholder-040f06fd774092478d450774f5ba30c5da78acc8## onclick=location.assign(this.value);//';\n\n    return view('child', ['value' => $value]);\n});\n```\n\nThe broken HTML element may be clicked and the user is taken to another location in their browser due to XSS. This is due to the user being able to guess the parent placeholder SHA-1 hash by trying common names of sections. If the parent template contains an exploitable HTML structure an XSS vulnerability can be exposed.\n\nThis vulnerability has been patched by determining the parent placeholder at runtime and using a random hash that is unique to each request.","public_affected_ranges":["ECOSYSTEM: introduced 7.0.0; fixed 7.30.6"]},{"certainty":"source_listed","source_ids":["sr-4a0aaf8de7f40a223e90c286a2ba3cad"],"technology":"illuminate/view","known_exclusions":[],"conditions_summary":"A security researcher has disclosed a possible XSS vulnerability in the Blade templating engine.\n\nGiven the following two Blade templates:\n\nresources/views/parent.blade.php:\n\n```html\n@section('content')\n\n@show\n```\n\nresources/views/child.blade.php:\n\n```html\n@extends('parent')\n\n@section('content')\n\n@endsection\n```\n\nAnd a route like the following:\n\n```php\nRoute::get('/example', function() {\n    $value = '//localhost/###parent-placeholder-040f06fd774092478d450774f5ba30c5da78acc8## onclick=location.assign(this.value);//';\n\n    return view('child', ['value' => $value]);\n});\n```\n\nThe broken HTML element may be clicked and the user is taken to another location in their browser due to XSS. This is due to the user being able to guess the parent placeholder SHA-1 hash by trying common names of sections. If the parent template contains an exploitable HTML structure an XSS vulnerability can be exposed.\n\nThis vulnerability has been patched by determining the parent placeholder at runtime and using a random hash that is unique to each request.","public_affected_ranges":["ECOSYSTEM: introduced 8.0.0; fixed 8.75.0"]}],"null_published_at":"2026-10-31T22:12:48.029Z","source_updated_at":"2026-07-08T06:27:53.544Z","source_disclosed_at":"2021-12-08T19:57:36.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:41:59.931Z"}],"next_cursor":null,"snapshot_revision":"42594"}