dulldusk phpfm up to 1.8.0 index.php auth_pass missing authentication

Summaryinfo

A vulnerability, which was classified as critical, was found in dulldusk phpfm up to 1.8.0. Affected by this issue is some unknown functionality of the file index.php. Such manipulation of the argument auth_pass leads to missing authentication. This vulnerability is referenced as CVE-2026-72593. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in dulldusk phpfm up to 1.8.0 and classified as critical. Affected by this issue is some unknown functionality of the file index.php. The manipulation of the argument auth_pass with an unknown input leads to a missing authentication vulnerability. Using CWE to declare the problem leads to CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-72593 since 08/10/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/10/2026).

By approaching the search of inurl:index.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• dulldusk

Name

• phpfm

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8.0

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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Exploitinginfo

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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