{"id":"CVE-2026-75831","title":"Grav before 2.0.15 contains a stored cross-site scripting vulnerability in the audio and video media rendering through the sourceParsedownElement method","summary":"Grav before 2.0.15 contains a stored cross-site scripting vulnerability in the audio and video media rendering through the sourceParsedownElement method. The media URL fragment is concatenated unescaped into rawHtml source elements, allo…","severity":"high","cvss":7.6,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N","cwe":["CWE-79"],"published":"2026-08-18","updated":"2026-09-08","sourceUpdated":"2026-09-08T20:32:39.347","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-75831","references":[{"url":"https://github.com/getgrav/grav/commit/aba291a59cab29ddce491175791888d8d0b65e20","label":"disclosure@vulncheck.com"},{"url":"https://github.com/getgrav/grav/security/advisories/GHSA-6qw9-4vv5-jr97","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/grav-before-stored-xss-via-audio-video-source-url","label":"disclosure@vulncheck.com"},{"url":"https://github.com/getgrav/grav/security/advisories/GHSA-6qw9-4vv5-jr97","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-75831"},{"url":"https://github.com/advisories/GHSA-6qw9-4vv5-jr97"}],"tags":["nvd","ghsa","composer"],"epss":0.00313,"epssPercentile":0.24411,"ingestedAt":"2026-09-08T21:11:12.279Z","aliases":["GHSA-6qw9-4vv5-jr97"],"ecosystem":"composer","vendor":"getgrav","product":"getgrav/grav","affected":["getgrav/grav <= 2.0.14"],"patched":["getgrav/grav 2.0.15"],"slug":"CVE-2026-75831","body":"## Overview\n\nGrav before 2.0.15 contains a stored cross-site scripting vulnerability in the audio and video media rendering through the sourceParsedownElement method. The media URL fragment is concatenated unescaped into rawHtml source elements, allowing attackers to inject arbitrary HTML and JavaScript that executes in viewers' sessions.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-75831)\n\nAffected packages:\n\n- `getgrav/grav <= 2.0.14`\n\nPatched in:\n\n- `getgrav/grav 2.0.15`\n\nSource: https://github.com/advisories/GHSA-6qw9-4vv5-jr97","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":41.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}