XSS in Viewvc
CVE-2025-54141
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.009 (56.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.009 · change: +0.000
Affected products
- Viewvc — versions >= 1.1.0, < 1.1.31, >= 1.2.0, < 1.2.4
Weakness classification (CWE)
References
- github.com/viewvc/viewvc/security/advisories/GHSA-rv3m-76rj-q397 (Vendor Advisory)
- github.com/viewvc/viewvc/issues/211 (Exploit, Issue Tracking)
- github.com/viewvc/viewvc/commit/1dd84542c39b39e4a3f434db84a8ba3441d6a1e7 (Patch)
- github.com/viewvc/viewvc/commit/5d7c76be07b77dce4ff631e9b866056344f11e84 (Patch)
Frequently asked questions
- What is CVE-2025-54141?
- CVE-2025-54141 is a high-severity vulnerability in Viewvc, classified under Path Traversal. CVSS score: 7.5/10. Published 2025-07-22.
- How severe is CVE-2025-54141?
- High severity. CVSS v3 base score is 7.5 out of 10.