{"id":"CVE-2026-88866","title":"WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the LoginControl plugin that fails to encode the User-Agent header before storing it in login history","summary":"WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the LoginControl plugin that fails to encode the User-Agent header before storing it in login history. Attackers …","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":"2026-09-10","updated":"2026-09-15","sourceUpdated":"2026-09-15T15:17:25.413","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-88866","references":[{"url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-wg67-62q3-2m33","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/wwbn-avideo-logincontrol-stored-xss-via-user-agent-header","label":"disclosure@vulncheck.com"},{"url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-wg67-62q3-2m33","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-09-15T14:19:04.571056Z"},"epss":0.0031,"epssPercentile":0.24036,"ingestedAt":"2026-09-10T13:50:37.334Z","slug":"CVE-2026-88866","body":"## Overview\n\nWWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the LoginControl plugin that fails to encode the User-Agent header before storing it in login history. Attackers with any valid login account can inject malicious scripts in the User-Agent header that execute in administrator browsers when viewing the Login History page, allowing script execution within the administrator session.\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":203711,"id":"CVE-2026-88866","ts":1789483138368,"field":"exploit_available","old":"false","new":"true"}]}