CVE-2026-89256: Wwbn Avideo

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

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 owner can inject malicious scripts via the bookmark name parameter, and every visitor of that video executes the payload in the AVideo origin.

Affected products

• Wwbn Avideo

Published 2026-09-11. Last modified 2026-09-11.