{"items":[{"id":"NVI-00006113","kind":"vulnerability","title":"Grav: Single invalid UTF-8 byte disables every rule in Security::detectXss(), bypassing the page-content XSS safety gate","revision":4,"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-q2j8-x8hf-63ch","CVE-2026-75834"],"plain_summary":"OSV carries this publisher advisory for getgrav/grav. 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 2.0.14 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-a801b36eff46f19e3e5abeb98da172e4"],"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-2ea0b961cd893eee0f4a9bacf4c8aeec"],"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":"2026-10-22T22:10:00.250Z","value":"5.4 MEDIUM (3.1)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-d95e8826669a3c8e09ccadbe57334210"},{"kind":"CVSS","as_of":"2026-10-22T22:10:00.250Z","value":"5.1 MEDIUM (4.0)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-d95e8826669a3c8e09ccadbe57334210"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.255%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.17094. Missing scores are unknown.","source_id":"sr-2ea0b961cd893eee0f4a9bacf4c8aeec"}],"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-a801b36eff46f19e3e5abeb98da172e4","url":"https://github.com/advisories/GHSA-q2j8-x8hf-63ch","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-q2j8-x8hf-63ch","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.997Z"},{"id":"sr-d95e8826669a3c8e09ccadbe57334210","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-75834","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-75834","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:58.008Z"},{"id":"sr-2ea0b961cd893eee0f4a9bacf4c8aeec","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-2026-75834","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.862Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-a801b36eff46f19e3e5abeb98da172e4"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Vulnerability Details\n\n**Component**: getgrav/grav core\n**File**: `system/src/Grav/Common/Security.php`\n**Function**: `detectXss()` (all six entries in the `$patterns` array use the PCRE `u` modifier), invoked from `Grav\\Common\\Data\\Validation::checkSafety()` (the save-time XSS gate for any non-`security.xss_whitelist` account's blueprint field, including the page `content` field) and `detectXssInEditorContent()` (the render-time backstop for GHSA-2c4f-86xc-cr74)\n**CWE**: CWE-79 (Stored XSS), root-caused by CWE-20 (Improper Input Validation — fails open on malformed input)\n**Severity**: High\n**CVSS**: 8.0 — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N\n\n### Relationship to prior advisories\nThis project's `detectXss()`/`checkSafety()` stack has been patched at least three times for the \"page editor without super-admin rights stores an event handler that runs for site visitors\" bug class: GHSA-9695-8fr9-hw5q / GHSA-c2q3-p4jr-c55f / GHSA-w8cg-7jcj-4vv2 (unquoted-attribute bypasses), GHSA-269c-h76q-8cxw (quoted-attribute-boundary bypass), GHSA-2c4f-86xc-cr74 (render-time Twig-assembled bypass). All three patched the **regex logic**. This is a different, lower-level defect: the PHP re","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.14"]}],"null_published_at":"2026-11-08T19:53:38.923Z","source_updated_at":"2026-09-17T21:00:04.109Z","source_disclosed_at":"2026-09-17T20:44:39.000Z","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":"2026-10-31T21:42:30.997Z"},{"id":"NVI-00006113","kind":"vulnerability","title":"Grav: Single invalid UTF-8 byte disables every rule in Security::detectXss(), bypassing the page-content XSS safety gate","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-q2j8-x8hf-63ch","CVE-2026-75834"],"plain_summary":"OSV carries this publisher advisory for getgrav/grav. 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 2.0.14 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-a801b36eff46f19e3e5abeb98da172e4"],"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-210dcaeb79c9f891a3e229a0056e0527"],"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":"2026-10-22T22:10:00.250Z","value":"5.4 MEDIUM (3.1)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-d95e8826669a3c8e09ccadbe57334210"},{"kind":"CVSS","as_of":"2026-10-22T22:10:00.250Z","value":"5.1 MEDIUM (4.0)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-d95e8826669a3c8e09ccadbe57334210"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.255%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.17115. Missing scores are unknown.","source_id":"sr-210dcaeb79c9f891a3e229a0056e0527"}],"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-a801b36eff46f19e3e5abeb98da172e4","url":"https://github.com/advisories/GHSA-q2j8-x8hf-63ch","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-q2j8-x8hf-63ch","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.997Z"},{"id":"sr-d95e8826669a3c8e09ccadbe57334210","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-75834","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-75834","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:58.008Z"},{"id":"sr-210dcaeb79c9f891a3e229a0056e0527","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-2026-75834","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.384Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-a801b36eff46f19e3e5abeb98da172e4"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Vulnerability Details\n\n**Component**: getgrav/grav core\n**File**: `system/src/Grav/Common/Security.php`\n**Function**: `detectXss()` (all six entries in the `$patterns` array use the PCRE `u` modifier), invoked from `Grav\\Common\\Data\\Validation::checkSafety()` (the save-time XSS gate for any non-`security.xss_whitelist` account's blueprint field, including the page `content` field) and `detectXssInEditorContent()` (the render-time backstop for GHSA-2c4f-86xc-cr74)\n**CWE**: CWE-79 (Stored XSS), root-caused by CWE-20 (Improper Input Validation — fails open on malformed input)\n**Severity**: High\n**CVSS**: 8.0 — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N\n\n### Relationship to prior advisories\nThis project's `detectXss()`/`checkSafety()` stack has been patched at least three times for the \"page editor without super-admin rights stores an event handler that runs for site visitors\" bug class: GHSA-9695-8fr9-hw5q / GHSA-c2q3-p4jr-c55f / GHSA-w8cg-7jcj-4vv2 (unquoted-attribute bypasses), GHSA-269c-h76q-8cxw (quoted-attribute-boundary bypass), GHSA-2c4f-86xc-cr74 (render-time Twig-assembled bypass). All three patched the **regex logic**. This is a different, lower-level defect: the PHP re","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.14"]}],"null_published_at":"2026-11-07T22:29:23.456Z","source_updated_at":"2026-09-17T21:00:04.109Z","source_disclosed_at":"2026-09-17T20:44:39.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:30.997Z"},{"id":"NVI-00006113","kind":"vulnerability","title":"Grav: Single invalid UTF-8 byte disables every rule in Security::detectXss(), bypassing the page-content XSS safety gate","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-q2j8-x8hf-63ch","CVE-2026-75834"],"plain_summary":"OSV carries this publisher advisory for getgrav/grav. 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 2.0.14 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-a801b36eff46f19e3e5abeb98da172e4"],"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-210dcaeb79c9f891a3e229a0056e0527"],"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":"0.255%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.17115. Missing scores are unknown.","source_id":"sr-210dcaeb79c9f891a3e229a0056e0527"}],"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-a801b36eff46f19e3e5abeb98da172e4","url":"https://github.com/advisories/GHSA-q2j8-x8hf-63ch","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-q2j8-x8hf-63ch","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.997Z"},{"id":"sr-210dcaeb79c9f891a3e229a0056e0527","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-2026-75834","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.384Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-a801b36eff46f19e3e5abeb98da172e4"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Vulnerability Details\n\n**Component**: getgrav/grav core\n**File**: `system/src/Grav/Common/Security.php`\n**Function**: `detectXss()` (all six entries in the `$patterns` array use the PCRE `u` modifier), invoked from `Grav\\Common\\Data\\Validation::checkSafety()` (the save-time XSS gate for any non-`security.xss_whitelist` account's blueprint field, including the page `content` field) and `detectXssInEditorContent()` (the render-time backstop for GHSA-2c4f-86xc-cr74)\n**CWE**: CWE-79 (Stored XSS), root-caused by CWE-20 (Improper Input Validation — fails open on malformed input)\n**Severity**: High\n**CVSS**: 8.0 — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N\n\n### Relationship to prior advisories\nThis project's `detectXss()`/`checkSafety()` stack has been patched at least three times for the \"page editor without super-admin rights stores an event handler that runs for site visitors\" bug class: GHSA-9695-8fr9-hw5q / GHSA-c2q3-p4jr-c55f / GHSA-w8cg-7jcj-4vv2 (unquoted-attribute bypasses), GHSA-269c-h76q-8cxw (quoted-attribute-boundary bypass), GHSA-2c4f-86xc-cr74 (render-time Twig-assembled bypass). All three patched the **regex logic**. This is a different, lower-level defect: the PHP re","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.14"]}],"null_published_at":"2026-10-31T22:27:09.609Z","source_updated_at":"2026-09-17T21:00:04.109Z","source_disclosed_at":"2026-09-17T20:44:39.000Z","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":"2026-10-31T21:42:30.997Z"},{"id":"NVI-00006113","kind":"vulnerability","title":"Grav: Single invalid UTF-8 byte disables every rule in Security::detectXss(), bypassing the page-content XSS safety gate","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-q2j8-x8hf-63ch","CVE-2026-75834"],"plain_summary":"OSV carries this publisher advisory for getgrav/grav. 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 2.0.14 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-a801b36eff46f19e3e5abeb98da172e4"],"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-a801b36eff46f19e3e5abeb98da172e4","url":"https://github.com/advisories/GHSA-q2j8-x8hf-63ch","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-q2j8-x8hf-63ch","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.997Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-a801b36eff46f19e3e5abeb98da172e4"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Vulnerability Details\n\n**Component**: getgrav/grav core\n**File**: `system/src/Grav/Common/Security.php`\n**Function**: `detectXss()` (all six entries in the `$patterns` array use the PCRE `u` modifier), invoked from `Grav\\Common\\Data\\Validation::checkSafety()` (the save-time XSS gate for any non-`security.xss_whitelist` account's blueprint field, including the page `content` field) and `detectXssInEditorContent()` (the render-time backstop for GHSA-2c4f-86xc-cr74)\n**CWE**: CWE-79 (Stored XSS), root-caused by CWE-20 (Improper Input Validation — fails open on malformed input)\n**Severity**: High\n**CVSS**: 8.0 — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N\n\n### Relationship to prior advisories\nThis project's `detectXss()`/`checkSafety()` stack has been patched at least three times for the \"page editor without super-admin rights stores an event handler that runs for site visitors\" bug class: GHSA-9695-8fr9-hw5q / GHSA-c2q3-p4jr-c55f / GHSA-w8cg-7jcj-4vv2 (unquoted-attribute bypasses), GHSA-269c-h76q-8cxw (quoted-attribute-boundary bypass), GHSA-2c4f-86xc-cr74 (render-time Twig-assembled bypass). All three patched the **regex logic**. This is a different, lower-level defect: the PHP re","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.14"]}],"null_published_at":"2026-10-31T22:13:05.859Z","source_updated_at":"2026-09-17T21:00:04.109Z","source_disclosed_at":"2026-09-17T20:44:39.000Z","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":"2026-10-31T21:42:30.997Z"}],"next_cursor":null,"snapshot_revision":"42594"}