Is starcitizenwiki/embedvideo affected by CVE-2025-59839?

Packagist starcitizenwiki/embedvideo is affected in <=4.0.0.

Is CVE-2025-59839 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

high

CVE-2025-59839

Q: Is CVE-2025-59839 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

Packagist · starcitizenwiki/embedvideo

Summary

Star Citizen EmbedVideo Extension Stored XSS through wikitext caused by usage of non-reserved data attributes

Severity: high
EPSS: 0.3% (p20)
Also known as: GHSA-4j5h-mvj3-m48v
Published: 2025-09-24

References

https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/security/advisories/GHSA-4j5h-mvj3-m48v
https://nvd.nist.gov/vuln/detail/CVE-2025-59839
https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/commit/4e075d3dc9a15a3ee53f449a684d5ab847e52f01

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.