CVE-2023-53894: Dulldusk Phpfilemanager

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

phpfm 1.7.9 contains an authentication bypass vulnerability that allows attackers to log in by exploiting loose type comparison in password hash validation. Attackers can craft specific password hashes beginning with 0e or 00e to bypass authentication and upload malicious PHP files to the server.

Affected products

• Dulldusk Phpfilemanager: version 1.7.9 only

Published 2025-12-16. Last modified 2026-06-17.