CVE-2025-59839
CVE-2025-59839 · Star Citizen EmbedVideo Extension Stored XSS through wikitext caused by usage of non-reserved data attributes
This page contains facts from public vulnerability sources. Check the original advisory before updating.
The EmbedVideo Extension is a MediaWiki extension which adds a parser function called #ev and various parser tags for embedding video clips from various video sharing services. In versions 4.0.0 and prior, the EmbedVideo extension allows adding arbitrary attributes to an HTML element, allowing for stored XSS through wikitext. This issue has been patched via commit 4e075d3.
CVSS 8.6 · High · EPSS 0.3%
- Published
- Updated
Stack: php
Affected products and versions
mediawiki-extensions-embedvideo
- Versions
- <= 4.0.0: Affected
No fix published
starcitizenwiki/embedvideo Packagist
- Versions
- 3.0.0
- 3.0.1
- 3.0.2
- 3.0.3
- 3.0.4
- 3.0.5
- 3.0.6
- 3.0.7
- 3.0.8
- 3.0.9
- 3.1.0
- 3.2.0
- 3.2.1
- 3.2.2
- 3.2.3
- 3.2.4
- 3.2.5
- 3.2.6
- 3.2.7
- 3.2.8
- 3.3.0
- 3.4.0
- 3.4.1
- 3.4.2
- 3.4.3
- 4.0.0
- Affected ranges
- ECOSYSTEM: ≤ 4.0.0
No fix published
Original sources
- https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/security/advisories/GHSA-4j5h-mvj3-m48v
- https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/commit/4e075d3dc9a15a3ee53f449a684d5ab847e52f01
- https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/blob/440fb331a84b2050f4cc084c1d31d58a1d1c202d/resources/ext.embedVideo.videolink.js#L5-L20
- https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/blob/440fb331a84b2050f4cc084c1d31d58a1d1c202d/resources/modules/iframe.js#L139-L155
- https://nvd.nist.gov/vuln/detail/CVE-2025-59839