CVE-2026-89243

WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in UserGroups::setGroup_name() that fails to sanitize group_name input. Administrators with canAdminUserGroups permission can inject malicious HTML and JavaScript that executes in the browser when other administrators access the user manager interface.

  • Published Sep 11, 2026
  • CVSS 9.2 critical
  • 0.4% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-89243 at the National Vulnerability Database