{"items":[{"id":"NVI-00006517","kind":"vulnerability","title":"Grav: Stored XSS via Markdown audio/video media  URL","revision":5,"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-6qw9-4vv5-jr97","CVE-2026-75831"],"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 2.0.15 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-b7d3ad48bcee4ce5c3ae93af3c21a54d"],"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-01ac409ed37bcd8deee3a9533cdc2291"],"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":"7.6 HIGH (3.1)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-8a9528c57e7ea58032ca7d1e22271a45"},{"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-8a9528c57e7ea58032ca7d1e22271a45"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.350%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.28661. Missing scores are unknown.","source_id":"sr-01ac409ed37bcd8deee3a9533cdc2291"}],"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-b7d3ad48bcee4ce5c3ae93af3c21a54d","url":"https://github.com/advisories/GHSA-6qw9-4vv5-jr97","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-6qw9-4vv5-jr97","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.939Z"},{"id":"sr-8a9528c57e7ea58032ca7d1e22271a45","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-75831","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-75831","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:58.008Z"},{"id":"sr-01ac409ed37bcd8deee3a9533cdc2291","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-2026-75831","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.862Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-b7d3ad48bcee4ce5c3ae93af3c21a54d"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"**Target:** github.com/getgrav/grav  \n**Affected resource:** `Grav\\Common\\Media\\Traits\\AudioMediaTrait` / `VideoMediaTrait` `sourceParsedownElement()` — verified on 2.0.13 (latest stable) and `develop` HEAD `5a7070f`  \n**Severity:** Medium (~6.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N — anchored to the sibling script-XSS advisory CVE-2026-42841, same PR:H / S:C / C:H / I:L)  \n**Weakness:** CWE-79 (Improper Neutralization of Input During Web Page Generation)\n\n## Summary\n\nA Markdown audio or video embed renders its `` element as **raw HTML** with the media URL concatenated unescaped. The URL fragment is reflected without any encoding, so `!x` breaks out of `` and injects arbitrary HTML — including a script-executing `` — into the rendered page. Any user who views the page runs the attacker's JavaScript in their session; a logged-in administrator who views it exposes their same-origin Grav Admin session to the attacker's script.\n\nThis is the next sink in the media-parameter injection class the maintainer has been closing: [GHSA-r7fx-8g","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.15"]}],"null_published_at":"2026-11-03T17:49:21.364Z","source_updated_at":"2026-09-17T17:45:04.317Z","source_disclosed_at":"2026-09-17T17:31:41.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:41:59.939Z"},{"id":"NVI-00006517","kind":"vulnerability","title":"Grav: Stored XSS via Markdown audio/video media  URL","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-6qw9-4vv5-jr97","CVE-2026-75831"],"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 2.0.15 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-b7d3ad48bcee4ce5c3ae93af3c21a54d"],"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-04425a10d7344954ad6bcfc681f91a73"],"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":"2026-11-01T12:00:16.000Z","value":"0.350%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.28673. Missing scores are unknown.","source_id":"sr-04425a10d7344954ad6bcfc681f91a73"}],"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-b7d3ad48bcee4ce5c3ae93af3c21a54d","url":"https://github.com/advisories/GHSA-6qw9-4vv5-jr97","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-6qw9-4vv5-jr97","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.939Z"},{"id":"sr-04425a10d7344954ad6bcfc681f91a73","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-2026-75831","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.286Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-b7d3ad48bcee4ce5c3ae93af3c21a54d"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"**Target:** github.com/getgrav/grav  \n**Affected resource:** `Grav\\Common\\Media\\Traits\\AudioMediaTrait` / `VideoMediaTrait` `sourceParsedownElement()` — verified on 2.0.13 (latest stable) and `develop` HEAD `5a7070f`  \n**Severity:** Medium (~6.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N — anchored to the sibling script-XSS advisory CVE-2026-42841, same PR:H / S:C / C:H / I:L)  \n**Weakness:** CWE-79 (Improper Neutralization of Input During Web Page Generation)\n\n## Summary\n\nA Markdown audio or video embed renders its `` element as **raw HTML** with the media URL concatenated unescaped. The URL fragment is reflected without any encoding, so `!x` breaks out of `` and injects arbitrary HTML — including a script-executing `` — into the rendered page. Any user who views the page runs the attacker's JavaScript in their session; a logged-in administrator who views it exposes their same-origin Grav Admin session to the attacker's script.\n\nThis is the next sink in the media-parameter injection class the maintainer has been closing: [GHSA-r7fx-8g","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.15"]}],"null_published_at":"2026-11-02T20:21:07.782Z","source_updated_at":"2026-09-17T17:45:04.317Z","source_disclosed_at":"2026-09-17T17:31:41.000Z","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":"2026-10-31T21:41:59.939Z"},{"id":"NVI-00006517","kind":"vulnerability","title":"Grav: Stored XSS via Markdown audio/video media  URL","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-6qw9-4vv5-jr97","CVE-2026-75831"],"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 2.0.15 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-b7d3ad48bcee4ce5c3ae93af3c21a54d"],"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-6e43ee12d5be2cabcc6ae470748eed34"],"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":"0.350%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.28675. Missing scores are unknown.","source_id":"sr-6e43ee12d5be2cabcc6ae470748eed34"}],"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-b7d3ad48bcee4ce5c3ae93af3c21a54d","url":"https://github.com/advisories/GHSA-6qw9-4vv5-jr97","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-6qw9-4vv5-jr97","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.939Z"},{"id":"sr-6e43ee12d5be2cabcc6ae470748eed34","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-2026-75831","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.384Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-b7d3ad48bcee4ce5c3ae93af3c21a54d"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"**Target:** github.com/getgrav/grav  \n**Affected resource:** `Grav\\Common\\Media\\Traits\\AudioMediaTrait` / `VideoMediaTrait` `sourceParsedownElement()` — verified on 2.0.13 (latest stable) and `develop` HEAD `5a7070f`  \n**Severity:** Medium (~6.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N — anchored to the sibling script-XSS advisory CVE-2026-42841, same PR:H / S:C / C:H / I:L)  \n**Weakness:** CWE-79 (Improper Neutralization of Input During Web Page Generation)\n\n## Summary\n\nA Markdown audio or video embed renders its `` element as **raw HTML** with the media URL concatenated unescaped. The URL fragment is reflected without any encoding, so `!x` breaks out of `` and injects arbitrary HTML — including a script-executing `` — into the rendered page. Any user who views the page runs the attacker's JavaScript in their session; a logged-in administrator who views it exposes their same-origin Grav Admin session to the attacker's script.\n\nThis is the next sink in the media-parameter injection class the maintainer has been closing: [GHSA-r7fx-8g","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.15"]}],"null_published_at":"2026-11-01T19:14:01.578Z","source_updated_at":"2026-09-17T17:45:04.317Z","source_disclosed_at":"2026-09-17T17:31:41.000Z","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":"2026-10-31T21:41:59.939Z"},{"id":"NVI-00006517","kind":"vulnerability","title":"Grav: Stored XSS via Markdown audio/video media  URL","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-6qw9-4vv5-jr97","CVE-2026-75831"],"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 2.0.15 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-b7d3ad48bcee4ce5c3ae93af3c21a54d"],"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-b7d3ad48bcee4ce5c3ae93af3c21a54d","url":"https://github.com/advisories/GHSA-6qw9-4vv5-jr97","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-6qw9-4vv5-jr97","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.939Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-b7d3ad48bcee4ce5c3ae93af3c21a54d"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"**Target:** github.com/getgrav/grav  \n**Affected resource:** `Grav\\Common\\Media\\Traits\\AudioMediaTrait` / `VideoMediaTrait` `sourceParsedownElement()` — verified on 2.0.13 (latest stable) and `develop` HEAD `5a7070f`  \n**Severity:** Medium (~6.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N — anchored to the sibling script-XSS advisory CVE-2026-42841, same PR:H / S:C / C:H / I:L)  \n**Weakness:** CWE-79 (Improper Neutralization of Input During Web Page Generation)\n\n## Summary\n\nA Markdown audio or video embed renders its `` element as **raw HTML** with the media URL concatenated unescaped. The URL fragment is reflected without any encoding, so `!x` breaks out of `` and injects arbitrary HTML — including a script-executing `` — into the rendered page. Any user who views the page runs the attacker's JavaScript in their session; a logged-in administrator who views it exposes their same-origin Grav Admin session to the attacker's script.\n\nThis is the next sink in the media-parameter injection class the maintainer has been closing: [GHSA-r7fx-8g","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.15"]}],"null_published_at":"2026-10-31T22:13:10.060Z","source_updated_at":"2026-09-17T17:45:04.317Z","source_disclosed_at":"2026-09-17T17:31:41.000Z","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":"2026-10-31T21:41:59.939Z"}],"next_cursor":null,"snapshot_revision":"42594"}