{"id":"CVE-2026-116139","published":"2026-10-25T14:16:51.610","lastModified":"2026-10-26T17:17:21.390","description":"WWBN AVideo 26.0 through 29.3.0 contains a stored cross-site scripting vulnerability that allows authenticated commenters to inject JavaScript because markDownToHTML() preserves event-handler attributes in leading HTML blocks. Attackers can post a comment starting with an img tag carrying an onerror handler, which bypasses the inline sanitizer and executes in viewers' browsers under the application origin.","cvssScore":5.4,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","cwes":["CWE-79"],"vendors":[],"products":[],"references":[{"url":"https://github.com/WWBN/AVideo/commit/f13587c59346b4bf0f449273021d29b869594559","tags":[]},{"url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-cx46-26xc-2w7f","tags":[]},{"url":"https://www.vulncheck.com/advisories/wwbn-avideo-26.0-through-29.3.0-stored-xss-via-comment-markdown-rendering","tags":[]}],"exploitRefs":[{"url":"https://github.com/WWBN/AVideo/commit/f13587c59346b4bf0f449273021d29b869594559","tags":[]},{"url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-cx46-26xc-2w7f","tags":[]}],"hasPoc":true,"ai":null}