ViewVC up to 1.1.30/1.2.3 standalone.py path traversal

Summaryinfo

A vulnerability, which was classified as critical, has been found in ViewVC up to 1.1.30/1.2.3. This vulnerability affects unknown code of the file standalone.py. This manipulation causes path traversal. This vulnerability appears as CVE-2025-54141. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in ViewVC up to 1.1.30/1.2.3 and classified as critical. Affected by this vulnerability is an unknown functionality of the file standalone.py. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality. The summary by CVE is:

ViewVC is a browser interface for CVS and Subversion version control repositories. In versions 1.1.0 through 1.1.31 and 1.2.0 through 1.2.3, the standalone.py script provided in the ViewVC distribution can expose the contents of the host server's filesystem though a directory traversal-style attack. This is fixed in versions 1.1.31 and 1.2.4.

The advisory is shared at github.com. This vulnerability is known as CVE-2025-54141 since 07/17/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 252230 (Linux Distros Unpatched Vulnerability : CVE-2025-54141), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.1.31 or 1.2.4 eliminates this vulnerability. Applying the patch 1dd84542c39b39e4a3f434db84a8ba3441d6a1e7 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (252230) and EUVD (EUVD-2025-22380). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• ViewVC

Version

• 1.1.0
• 1.1.1
• 1.1.2
• 1.1.3
• 1.1.4
• 1.1.5
• 1.1.6
• 1.1.7
• 1.1.8
• 1.1.9
• 1.1.10
• 1.1.11
• 1.1.12
• 1.1.13
• 1.1.14
• 1.1.15
• 1.1.16
• 1.1.17
• 1.1.18
• 1.1.19
• 1.1.20
• 1.1.21
• 1.1.22
• 1.1.23
• 1.1.24
• 1.1.25
• 1.1.26
• 1.1.27
• 1.1.28
• 1.1.29
• 1.1.30
• 1.2.0
• 1.2.1
• 1.2.2
• 1.2.3

License

• open-source

Website

• Product: https://github.com/viewvc/viewvc/

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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