{"id":"CVE-2026-89256","title":"AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the Bookmark plugin where chapter names are not encoded before being concatenated into public watch-page HTML","summary":"AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the Bookmark plugin where chapter names are not encoded before being concatenated into public watch-page HTML. A video…","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"],"vendor":"WWBN","product":"AVideo","affected":["AVideo <= c3edcc274c389816d434acadac07ee78eaf330c1"],"published":"2026-09-11","updated":"2026-09-11","sourceUpdated":"2026-09-11T20:19:23.217","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89256","references":[{"url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-jggq-mm5m-r5wv","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/avideo-bookmark-plugin-stored-xss-via-chapter-names","label":"disclosure@vulncheck.com"},{"url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-jggq-mm5m-r5wv","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-09-11T19:16:36.530278Z"},"ingestedAt":"2026-09-13T23:56:52.558Z","epss":0.00323,"epssPercentile":0.25493,"slug":"CVE-2026-89256","body":"## Overview\n\nAVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the Bookmark plugin where chapter names are not encoded before being concatenated into public watch-page HTML. A video owner can inject malicious scripts via the bookmark name parameter, and every visitor of that video executes the payload in the AVideo origin.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":60,"depthScoreParts":{"impact":47.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":95610,"id":"CVE-2026-89256","ts":1789156669772,"field":"exploit_available","old":"false","new":"true"}]}