Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Star-Citizen | Embedvideo | <= 4.0.0 |
Related Weaknesses (CWE)
References
- https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/blob/440fb331Product
- https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/blob/440fb331Product
- https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/commit/4e075dPatch
- https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/security/adviExploitVendor Advisory
- https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/security/adviExploitVendor Advisory
FAQ
What is CVE-2025-59839?
CVE-2025-59839 is a vulnerability with a CVSS score of 8.6 (HIGH). 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 p...
How severe is CVE-2025-59839?
CVE-2025-59839 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-59839?
Check the references section above for vendor advisories and patch information. Affected products include: Star-Citizen Embedvideo.