Executive brief
CRMEB is an open-source e-commerce platform used to build online stores. A flaw in the message system allows authenticated users to modify or delete system notifications belonging to other users without authorization, potentially hiding important alerts or reassigning messages to unauthorized accounts.
Technical details
The edit_message handler in MessageSystemController.php fails to validate that the authenticated user owns the message before allowing modifications. An authenticated attacker can update arbitrary system inbox messages, including the is_del column (to delete), look column (to mark as read), and uid column (to reassign). The vulnerability requires authentication but allows lateral privilege escalation within the system by tampering with other users' notifications. No authorization check is performed between the requesting user and the message owner.
Affected products
- CRMEB CRMEB through 6.0.0
Timeline
- 2026-09-03: disclosed