{"items":[{"id":"NVI-00002168","kind":"vulnerability","title":"Admidio vulnerable to reflected XSS in msg_window.php via Square Bracket to HTML Tag Conversion","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-gq27-fc8w-vcmp","CVE-2026-41661"],"plain_summary":"OSV carries this publisher advisory for admidio/admidio. 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 5.0.9 for admidio/admidio. Confirm the publisher’s latest guidance.","source_ids":["sr-0e42c99eed6251d4a7a357b1c0ff0cb4"],"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-1a40bdea76125d0a3ba33ccd41456115"],"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":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.181%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.0763. Missing scores are unknown.","source_id":"sr-1a40bdea76125d0a3ba33ccd41456115"}],"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-0e42c99eed6251d4a7a357b1c0ff0cb4","url":"https://github.com/advisories/GHSA-gq27-fc8w-vcmp","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-gq27-fc8w-vcmp","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:20.420Z"},{"id":"sr-1a40bdea76125d0a3ba33ccd41456115","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-2026-41661","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.853Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-0e42c99eed6251d4a7a357b1c0ff0cb4"],"technology":"admidio/admidio","known_exclusions":[],"conditions_summary":"## Summary\n\nAn unauthenticated attacker can execute arbitrary JavaScript in any Admidio user's browser through a reflected XSS in `system/msg_window.php`. The endpoint passes user input through `htmlspecialchars()`, which does not encode square brackets. A subsequent call to `Language::prepareTextPlaceholders()` converts those brackets into HTML angle brackets, producing executable markup.\n\n## Details\n\nThe `msg_window.php` endpoint accepts `message_id` and `message_var1` as GET parameters. At line 146, the code passes `message_var1` through `htmlspecialchars()` before inserting it into the language string as a placeholder:\n\n```php\n// system/msg_window.php:146\n$messageText = $gL10n->get($messageId, array(htmlspecialchars($messageVar1)));\n```\n\n`htmlspecialchars()` encodes ``, `&`, `\"`, and `'` but leaves `[` and `]` untouched. The `Language::get()` method calls `Language::prepareTextPlaceholders()`, which performs a character-level translation:\n\n```php\n// src/Infrastructure/Language.php:497\n$text = strtr($text, '[]', '');\n```\n\nThis converts all square brackets in the output string, including those from user input, into angle brackets. An attacker submits `[script]alert(docume","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.0.9"]}],"null_published_at":"2026-11-07T14:01:55.434Z","source_updated_at":"2026-05-08T20:33:35.913Z","source_disclosed_at":"2026-04-29T21:51:13.000Z","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":"2026-10-31T21:42:20.420Z"},{"id":"NVI-00002168","kind":"vulnerability","title":"Admidio vulnerable to reflected XSS in msg_window.php via Square Bracket to HTML Tag Conversion","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-gq27-fc8w-vcmp","CVE-2026-41661"],"plain_summary":"OSV carries this publisher advisory for admidio/admidio. 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 5.0.9 for admidio/admidio. Confirm the publisher’s latest guidance.","source_ids":["sr-0e42c99eed6251d4a7a357b1c0ff0cb4"],"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-4120cd8097a380d7c8a8faa5b4161d4e"],"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":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.181%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.07636. Missing scores are unknown.","source_id":"sr-4120cd8097a380d7c8a8faa5b4161d4e"}],"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-0e42c99eed6251d4a7a357b1c0ff0cb4","url":"https://github.com/advisories/GHSA-gq27-fc8w-vcmp","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-gq27-fc8w-vcmp","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:20.420Z"},{"id":"sr-4120cd8097a380d7c8a8faa5b4161d4e","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-2026-41661","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.378Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-0e42c99eed6251d4a7a357b1c0ff0cb4"],"technology":"admidio/admidio","known_exclusions":[],"conditions_summary":"## Summary\n\nAn unauthenticated attacker can execute arbitrary JavaScript in any Admidio user's browser through a reflected XSS in `system/msg_window.php`. The endpoint passes user input through `htmlspecialchars()`, which does not encode square brackets. A subsequent call to `Language::prepareTextPlaceholders()` converts those brackets into HTML angle brackets, producing executable markup.\n\n## Details\n\nThe `msg_window.php` endpoint accepts `message_id` and `message_var1` as GET parameters. At line 146, the code passes `message_var1` through `htmlspecialchars()` before inserting it into the language string as a placeholder:\n\n```php\n// system/msg_window.php:146\n$messageText = $gL10n->get($messageId, array(htmlspecialchars($messageVar1)));\n```\n\n`htmlspecialchars()` encodes ``, `&`, `\"`, and `'` but leaves `[` and `]` untouched. The `Language::get()` method calls `Language::prepareTextPlaceholders()`, which performs a character-level translation:\n\n```php\n// src/Infrastructure/Language.php:497\n$text = strtr($text, '[]', '');\n```\n\nThis converts all square brackets in the output string, including those from user input, into angle brackets. An attacker submits `[script]alert(docume","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.0.9"]}],"null_published_at":"2026-10-31T23:18:17.209Z","source_updated_at":"2026-05-08T20:33:35.913Z","source_disclosed_at":"2026-04-29T21:51:13.000Z","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":"2026-10-31T21:42:20.420Z"},{"id":"NVI-00002168","kind":"vulnerability","title":"Admidio vulnerable to reflected XSS in msg_window.php via Square Bracket to HTML Tag Conversion","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-gq27-fc8w-vcmp","CVE-2026-41661"],"plain_summary":"OSV carries this publisher advisory for admidio/admidio. 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 5.0.9 for admidio/admidio. Confirm the publisher’s latest guidance.","source_ids":["sr-0e42c99eed6251d4a7a357b1c0ff0cb4"],"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-0e42c99eed6251d4a7a357b1c0ff0cb4","url":"https://github.com/advisories/GHSA-gq27-fc8w-vcmp","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-gq27-fc8w-vcmp","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:20.420Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-0e42c99eed6251d4a7a357b1c0ff0cb4"],"technology":"admidio/admidio","known_exclusions":[],"conditions_summary":"## Summary\n\nAn unauthenticated attacker can execute arbitrary JavaScript in any Admidio user's browser through a reflected XSS in `system/msg_window.php`. The endpoint passes user input through `htmlspecialchars()`, which does not encode square brackets. A subsequent call to `Language::prepareTextPlaceholders()` converts those brackets into HTML angle brackets, producing executable markup.\n\n## Details\n\nThe `msg_window.php` endpoint accepts `message_id` and `message_var1` as GET parameters. At line 146, the code passes `message_var1` through `htmlspecialchars()` before inserting it into the language string as a placeholder:\n\n```php\n// system/msg_window.php:146\n$messageText = $gL10n->get($messageId, array(htmlspecialchars($messageVar1)));\n```\n\n`htmlspecialchars()` encodes ``, `&`, `\"`, and `'` but leaves `[` and `]` untouched. The `Language::get()` method calls `Language::prepareTextPlaceholders()`, which performs a character-level translation:\n\n```php\n// src/Infrastructure/Language.php:497\n$text = strtr($text, '[]', '');\n```\n\nThis converts all square brackets in the output string, including those from user input, into angle brackets. An attacker submits `[script]alert(docume","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.0.9"]}],"null_published_at":"2026-10-31T21:54:04.899Z","source_updated_at":"2026-05-08T20:33:35.913Z","source_disclosed_at":"2026-04-29T21:51:13.000Z","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":"2026-10-31T21:42:20.420Z"}],"next_cursor":null,"snapshot_revision":"42594"}