CVE-2023-53894
CriticalSummary
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.
Risk Assessment
An attacker can gain unauthorized access to the application and upload malicious files, potentially leading to remote code execution on the server.
Recommendation
Upgrade phpfm to the latest version and implement secure password comparison (e.g., hash_equals).
Other vulnerabilities in phpfm
See all- CVE-2026-72593Critical
phpfm through 1.8.0 has a missing authentication vulnerability that allows an unauthenticated remote attacker to access the full file manager functionality, including reading, writing, deleting, and uploading files anywhere on the server filesystem.
- CVE-2026-72592Critical
phpfm through 1.8.0 has an unrestricted file upload vulnerability that allows an unauthenticated attacker to upload a PHP webshell and execute it on the server. The application has no authentication by default and an empty upload extension filter.
Original NVD description (English source)
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.