CVE-2025-59839 — Star Citizen EmbedVideo Extension Stored XSS through wikitext caused by usage of non-reserved data attributes
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. …
Published: 2025-09-25 · CVSS: 8.6 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7