EUVD-2026-28276

Admidio is an open-source user management solution. Prior to version 5.0.9, Role::stopMembership does not verify whether removing a user from the administrator role leaves zero administrators. The deprecated Membership::stopMembership contains this safety check, but the current code path bypasses...

GHSA-C7XM-R6VJ-8VG6 Admidio Missing Minimum Administrator Check in Role Membership Removal

Summary Role::stopMembership does not verify whether removing a user from the administrator role leaves zero administrators. The deprecated Membership::stopMembership contains this safety check, but the current code path bypasses it. Any administrator can remove the last remaining other...