PhastPress Plugin up to 3.7 on WordPress wp-config.php getExtensionForURL information disclosure

Summaryinfo

A vulnerability classified as problematic was found in PhastPress Plugin up to 3.7 on WordPress. Affected is the function getExtensionForURL of the file wp-config.php. Such manipulation leads to information disclosure. This vulnerability is referenced as CVE-2025-14388. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in PhastPress Plugin up to 3.7 on WordPress and classified as problematic. Affected by this issue is the function getExtensionForURL of the file wp-config.php. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

The PhastPress plugin for WordPress is vulnerable to Unauthenticated Arbitrary File Read via null byte injection in all versions up to, and including, 3.7. This is due to a discrepancy between the extension validation in `getExtensionForURL()` which operates on URL-decoded paths, and `appendNormalized()` which strips everything after a null byte before constructing the filesystem path. This makes it possible for unauthenticated attackers to read arbitrary files from the webroot, including wp-config.php, by appending a double URL-encoded null byte (%2500) followed by an allowed extension (.txt) to the file path.

The advisory is shared for download at wordfence.com. This vulnerability is handled as CVE-2025-14388. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1592.

By approaching the search of inurl:wp-config.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.

The vulnerability is also documented in the databases at CNNVD (CNNVD-202512-4173) and EUVD (EUVD-2025-204781). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Name

• PhastPress Plugin

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6
• 3.7

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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