{"id":"CVE-2026-75828","title":"Grav before 2.0.15 contains a stored cross-site scripting vulnerability in the detectXss() function where unpaired quotes in unquoted attribute values bypass event-handler detection","summary":"Grav before 2.0.15 contains a stored cross-site scripting vulnerability in the detectXss() function where unpaired quotes in unquoted attribute values bypass event-handler detection. Authenticated editors can inject event handlers like o…","severity":"high","cvss":8.7,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/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-2026-75828","references":[{"url":"https://github.com/getgrav/grav/security/advisories/GHSA-vfmf-q6x9-cw96","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/grav-before-stored-xss-via-detectxss-quote-bypass","label":"disclosure@vulncheck.com"},{"url":"https://github.com/getgrav/grav/security/advisories/GHSA-vfmf-q6x9-cw96","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-75828"},{"url":"https://github.com/advisories/GHSA-vfmf-q6x9-cw96"}],"tags":["nvd","ghsa","composer"],"epss":0.00343,"epssPercentile":0.27796,"ingestedAt":"2026-09-08T21:11:12.279Z","aliases":["GHSA-vfmf-q6x9-cw96"],"ecosystem":"composer","vendor":"getgrav","product":"getgrav/grav","affected":["getgrav/grav <= 2.0.14"],"patched":["getgrav/grav 2.0.15"],"slug":"CVE-2026-75828","body":"## Overview\n\nGrav before 2.0.15 contains a stored cross-site scripting vulnerability in the detectXss() function where unpaired quotes in unquoted attribute values bypass event-handler detection. Authenticated editors can inject event handlers like onerror= that pass validation and execute in visitor browsers when page content is rendered.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-75828)\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-vfmf-q6x9-cw96","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":47.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}