CVE-2026-72593: CWE-306: Missing Authentication for Critical Function in dulldusk phpfm
A missing authentication vulnerability in dulldusk/phpfm through 1.8.0 allows an unauthenticated remote attacker to access the full file manager functionality including reading, writing, deleting, and uploading files anywhere on the server filesystem.
AI Analysis
Technical Summary
The vulnerability arises from an authentication check in index.php at line 637 that evaluates 'if ($auth_pass == '' || $loggedon==$auth_pass)'. Since the default configuration sets auth_pass to an empty string, this condition always evaluates to true, granting full file manager access without requiring credentials. This allows unauthenticated remote attackers to perform critical file operations on the server.
Potential Impact
An attacker can remotely access the full file manager functionality without authentication, enabling them to read, write, delete, and upload files anywhere on the server filesystem. This compromises confidentiality, integrity, and availability of the affected system, representing a critical security risk.
Mitigation Recommendations
No official patch or remediation level is currently documented. Users should upgrade to dulldusk/phpfm version 1.8.1 or later once available. Until then, it is recommended to restrict access to the file manager interface through network controls or other access restrictions to prevent unauthenticated access.
CVE-2026-72593: CWE-306: Missing Authentication for Critical Function in dulldusk phpfm
Description
A missing authentication vulnerability in dulldusk/phpfm through 1.8.0 allows an unauthenticated remote attacker to access the full file manager functionality including reading, writing, deleting, and uploading files anywhere on the server filesystem.
CVSS v3.1
Score 9.8critical
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability arises from an authentication check in index.php at line 637 that evaluates 'if ($auth_pass == '' || $loggedon==$auth_pass)'. Since the default configuration sets auth_pass to an empty string, this condition always evaluates to true, granting full file manager access without requiring credentials. This allows unauthenticated remote attackers to perform critical file operations on the server.
Potential Impact
An attacker can remotely access the full file manager functionality without authentication, enabling them to read, write, delete, and upload files anywhere on the server filesystem. This compromises confidentiality, integrity, and availability of the affected system, representing a critical security risk.
Mitigation Recommendations
No official patch or remediation level is currently documented. Users should upgrade to dulldusk/phpfm version 1.8.1 or later once available. Until then, it is recommended to restrict access to the file manager interface through network controls or other access restrictions to prevent unauthenticated access.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- TuranSec
- Date Reserved
- 2026-08-10T10:32:53.855Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a79ae71bf8831d5398afd6a
Added to database: 08/10/2026, 10:56:49 UTC
Last enriched: 08/10/2026, 11:11:22 UTC
Last updated: 08/10/2026, 15:45:12 UTC
Views: 8
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