{"id":"CVE-2026-89239","title":"WWBN AVideo Reflected XSS via Referer Header Comment Breakout","summary":"WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a reflected cross-site scripting vulnerability in the showAlertMessage() function that inserts the raw Referer header into a JavaScript comment without encoding…","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cvssSource":"cna","cwe":["CWE-79"],"vendor":"WWBN","product":"AVideo","affected":["AVideo <= c3edcc274c389816d434acadac07ee78eaf330c1"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-11T17:09:22.658710Z"},"published":"2026-09-11","updated":"2026-09-11","sourceUpdated":"2026-09-11T20:30:18.243Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89239","references":[{"url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-3pp9-g99w-qw3j","label":"GitHub Security Advisory (GHSA-3pp9-g99w-qw3j)"},{"url":"https://www.vulncheck.com/advisories/wwbn-avideo-reflected-xss-via-referer-header-comment-breakout","label":"VulnCheck Advisory: WWBN AVideo Reflected XSS via Referer Header Comment Breakout"}],"tags":["cve.org"],"epss":0.00164,"epssPercentile":0.06061,"ingestedAt":"2026-09-14T11:11:19.882Z","slug":"CVE-2026-89239","body":"## Overview\n\nWWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a reflected cross-site scripting vulnerability in the showAlertMessage() function that inserts the raw Referer header into a JavaScript comment without encoding. Attackers can craft a Referer header containing */ to close the comment and inject arbitrary JavaScript that executes in the site origin for visitors arriving from the attacker-controlled page.\n\n## Affected\n\n- `AVideo <= c3edcc274c389816d434acadac07ee78eaf330c1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}