CVE-2026-88866: Wwbn Avideo

High severity, CVSS 8.7. EPSS: 0.4% chance of exploitation in the next 30 days.

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 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.

Affected products

• Wwbn Avideo

Published 2026-09-10. Last modified 2026-09-15.