{"items":[{"id":"NVI-00007129","kind":"vulnerability","title":"Grav: Page editors can inject arbitrary script into rendered pages via the Twig sandbox's assets.addJs/addCss allowlist, escalating to super-admin","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-8hgv-xc77-jmcr","CVE-2026-86197"],"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 2.0.20 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-cfd1aa4d0180dd0dde286e57a01b1919"],"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-7352385d6739359998acd59088594463"],"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":"2026-10-08T16:17:55.950Z","value":"5.1 MEDIUM (4.0)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-d0957f65aa452760289f50ff0dc0f34f"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.412%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.3546. Missing scores are unknown.","source_id":"sr-7352385d6739359998acd59088594463"}],"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-cfd1aa4d0180dd0dde286e57a01b1919","url":"https://github.com/advisories/GHSA-8hgv-xc77-jmcr","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-8hgv-xc77-jmcr","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:10.670Z"},{"id":"sr-d0957f65aa452760289f50ff0dc0f34f","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86197","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-86197","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:25:08.112Z"},{"id":"sr-7352385d6739359998acd59088594463","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-2026-86197","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.385Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-cfd1aa4d0180dd0dde286e57a01b1919"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Summary\n\nGrav 2.0 renders editor-authored Twig in page content by default and relies on the Twig content sandbox to contain it. The shipped sandbox policy allowlists `addcss` and `addjs` on `Grav\\Common\\Assets` (`system/src/Grav/Common/Twig/Sandbox/SandboxDefaults.php:307`). Because the sandbox arbitrates the *call* and not its downstream effect, a user holding only page-edit rights can register an arbitrary asset from page content; the theme then emits it into the document head as a `` / `` tag. The asset URL is concatenated into that tag **without escaping**, so it can also break out of its own attribute.\n\nThe save-time XSS scan cannot see this: `Security::detectXssInEditorContent()` renders the content body in isolation and inspects the returned string, while `assets.addJs()` acts by mutating the shared Assets service and returns only an object key. The payload contains no markup for the scanner to flag.\n\nThis is not a `Security::detectXss()` bypass. It is content reaching an unescaped output sink through an allowlisted method.\n\n## Affected versions\n\nAll Grav 2.0 releases whose sandbox policy allowlists `addcss`/`addjs` on `Grav\\Common\\Assets`. The entr","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.20"]}],"null_published_at":"2026-11-07T22:29:23.438Z","source_updated_at":"2026-09-10T03:51:13.487Z","source_disclosed_at":"2026-08-21T19:14:59.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:10.670Z"},{"id":"NVI-00007129","kind":"vulnerability","title":"Grav: Page editors can inject arbitrary script into rendered pages via the Twig sandbox's assets.addJs/addCss allowlist, escalating to super-admin","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-8hgv-xc77-jmcr","CVE-2026-86197"],"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 2.0.20 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-cfd1aa4d0180dd0dde286e57a01b1919"],"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-7352385d6739359998acd59088594463"],"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":"0.412%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.3546. Missing scores are unknown.","source_id":"sr-7352385d6739359998acd59088594463"}],"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-cfd1aa4d0180dd0dde286e57a01b1919","url":"https://github.com/advisories/GHSA-8hgv-xc77-jmcr","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-8hgv-xc77-jmcr","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:10.670Z"},{"id":"sr-7352385d6739359998acd59088594463","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-2026-86197","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.385Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-cfd1aa4d0180dd0dde286e57a01b1919"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Summary\n\nGrav 2.0 renders editor-authored Twig in page content by default and relies on the Twig content sandbox to contain it. The shipped sandbox policy allowlists `addcss` and `addjs` on `Grav\\Common\\Assets` (`system/src/Grav/Common/Twig/Sandbox/SandboxDefaults.php:307`). Because the sandbox arbitrates the *call* and not its downstream effect, a user holding only page-edit rights can register an arbitrary asset from page content; the theme then emits it into the document head as a `` / `` tag. The asset URL is concatenated into that tag **without escaping**, so it can also break out of its own attribute.\n\nThe save-time XSS scan cannot see this: `Security::detectXssInEditorContent()` renders the content body in isolation and inspects the returned string, while `assets.addJs()` acts by mutating the shared Assets service and returns only an object key. The payload contains no markup for the scanner to flag.\n\nThis is not a `Security::detectXss()` bypass. It is content reaching an unescaped output sink through an allowlisted method.\n\n## Affected versions\n\nAll Grav 2.0 releases whose sandbox policy allowlists `addcss`/`addjs` on `Grav\\Common\\Assets`. The entr","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.20"]}],"null_published_at":"2026-11-01T19:14:01.595Z","source_updated_at":"2026-09-10T03:51:13.487Z","source_disclosed_at":"2026-08-21T19:14:59.000Z","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":"2026-10-31T21:42:10.670Z"},{"id":"NVI-00007129","kind":"vulnerability","title":"Grav: Page editors can inject arbitrary script into rendered pages via the Twig sandbox's assets.addJs/addCss allowlist, escalating to super-admin","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-8hgv-xc77-jmcr","CVE-2026-86197"],"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 2.0.20 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-cfd1aa4d0180dd0dde286e57a01b1919"],"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-cfd1aa4d0180dd0dde286e57a01b1919","url":"https://github.com/advisories/GHSA-8hgv-xc77-jmcr","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-8hgv-xc77-jmcr","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:10.670Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-cfd1aa4d0180dd0dde286e57a01b1919"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Summary\n\nGrav 2.0 renders editor-authored Twig in page content by default and relies on the Twig content sandbox to contain it. The shipped sandbox policy allowlists `addcss` and `addjs` on `Grav\\Common\\Assets` (`system/src/Grav/Common/Twig/Sandbox/SandboxDefaults.php:307`). Because the sandbox arbitrates the *call* and not its downstream effect, a user holding only page-edit rights can register an arbitrary asset from page content; the theme then emits it into the document head as a `` / `` tag. The asset URL is concatenated into that tag **without escaping**, so it can also break out of its own attribute.\n\nThe save-time XSS scan cannot see this: `Security::detectXssInEditorContent()` renders the content body in isolation and inspects the returned string, while `assets.addJs()` acts by mutating the shared Assets service and returns only an object key. The payload contains no markup for the scanner to flag.\n\nThis is not a `Security::detectXss()` bypass. It is content reaching an unescaped output sink through an allowlisted method.\n\n## Affected versions\n\nAll Grav 2.0 releases whose sandbox policy allowlists `addcss`/`addjs` on `Grav\\Common\\Assets`. The entr","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.20"]}],"null_published_at":"2026-10-31T22:13:14.313Z","source_updated_at":"2026-09-10T03:51:13.487Z","source_disclosed_at":"2026-08-21T19:14:59.000Z","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":"2026-10-31T21:42:10.670Z"}],"next_cursor":null,"snapshot_revision":"40769"}