Authorization Bypass Through User-Controlled Key
Gila CMS 2.2.0 is vulnerable to Insecure Direct Object Reference (IDOR). Thumbnails uploaded by one site owner are visible by another site owner just by knowing the other site name and fuzzing for picture names. This leads to sensitive information disclosure.
CWE-639 - Authorization Bypass Through User-Controlled Key
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.