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.
Published: 2026-08-10
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

A missing authentication check in dulldusk/phpfm versions up to 1.8.0 enables an unauthenticated remote attacker to perform any file manager operation—reading, writing, deleting, and uploading files—across the entire server filesystem. This flaw falls under CWE-306 and results in complete loss of confidentiality, integrity, and availability for the affected system.

Affected Systems

Vendors: dulldusk; Product: phpfm. Affected versions include all releases up to and including 1.8.0.

Risk and Exploitability

The CVSS score of 9.8 indicates critical severity. No EPSS score is available, and the vulnerability is not listed in CISA KEV. Exploitation requires only HTTP access to the web interface; an attacker needs no valid credentials, making this a straightforward remote unauthenticated threat.

Generated by OpenCVE AI on August 10, 2026 at 19:48 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade dulldusk/phpfm to the latest release that implements proper authentication.
  • If an upgrade is not immediately possible, configure a strong, non‑empty authentication password in the default configuration to disable the unintended bypass.
  • Restrict external access to the file manager web interface via firewalls or VPN, limiting exposure to authenticated administrators only.

Generated by OpenCVE AI on August 10, 2026 at 19:48 UTC.

Tracking

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Advisories

No advisories yet.

History

Mon, 10 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Mon, 10 Aug 2026 13:45:00 +0000

Type Values Removed Values Added
First Time appeared Dulldusk
Dulldusk phpfm
Vendors & Products Dulldusk
Dulldusk phpfm

Mon, 10 Aug 2026 12:00:00 +0000

Type Values Removed Values Added
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. The authentication check in index.php at line 637 evaluates 'if ($auth_pass == '' || $loggedon==$auth_pass)', and since auth_pass is an empty string in the default configuration, the condition always evaluates to true and grants full access without credentials. 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.

Mon, 10 Aug 2026 11:00:00 +0000

Type Values Removed Values Added
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. The authentication check in index.php at line 637 evaluates 'if ($auth_pass == '' || $loggedon==$auth_pass)', and since auth_pass is an empty string in the default configuration, the condition always evaluates to true and grants full access without credentials.
Title dulldusk phpfm - Missing Authentication by Default Allows Full Filesystem Access
Weaknesses CWE-306
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Subscriptions

Dulldusk Phpfm
cve-icon MITRE

Status: PUBLISHED

Assigner: TuranSec

Published:

Updated: 2026-08-10T13:25:34.747Z

Reserved: 2026-08-10T10:32:53.855Z

Link: CVE-2026-72593

cve-icon Vulnrichment

Updated: 2026-08-10T13:25:30.987Z

cve-icon NVD

Status : Deferred

Published: 2026-08-10T11:17:32.490

Modified: 2026-08-28T18:51:39.823

Link: CVE-2026-72593

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-10T20:00:03Z

Weaknesses
  • CWE-306

    Missing Authentication for Critical Function