Description
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.
Affected products
star-citizen: embedvideo
References5
- github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/secu… ExploitVendor Advisory
- github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/secu… ExploitVendor Advisory
- github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/comm… Patch
- github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/blob… Product
- github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/blob… Product
Metrics
- CVSS 3.1
-
5.4
MEDIUM
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 24 · as of 9 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.