Is CVE-2026-89243 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-89243?

CVE-2026-89243 has a CVSS v3 severity of HIGH (8.1).

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CVE-2026-89243

Description

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.