CVE-2025-52026: Aptsys Gemscms Backend

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

An information disclosure vulnerability exists in the /srvs/membersrv/getCashiers endpoint of the Aptsys gemscms backend platform thru 2025-05-28. This unauthenticated endpoint returns a list of cashier accounts, including names, email addresses, usernames, and passwords hashed using MD5. As MD5 is a broken cryptographic function, the hashes can be easily reversed using public tools, exposing user credentials in plaintext. This allows remote attackers to perform unauthorized logins and potentially gain access to sensitive POS operations or backend functions.

Affected products

• Aptsys Gemscms Backend: up to and including 2025-05-28

Published 2026-01-23. Last modified 2026-07-05.