CVE-2023-53894 - CVE House
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Status published Critical CVE-2023-53894

phpfm 1.7.9 Authentication Bypass via Type Juggling Vulnerability

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • thoughtfault

References

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Medium 6.1

Affected Vendor

Affected Software

phpfm
Vulnerable Versions:
1.7.9

Timeline

Official Publish: December 16th, 2025
Last Modified: April 7th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-1390

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.