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Vulnerabilities

Security fix · CVE-2025-59839

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 Sep 25, 2025 · catalog updated Sep 25, 2025 · StarCitizenWiki mediawiki-extensions-EmbedVideo

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-59839. EPSS is 0.31%. Act only if a listed version of StarCitizenWiki mediawiki-extensions-EmbedVideo is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.6
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.31%
Remediation
Advisory link
Affected products
vendor StarCitizenWiki mediawiki-extensions-EmbedVideo ≤ 4.0.0

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor StarCitizenWiki mediawiki-extensions-EmbedVideo ≤ 4.0.0≤ 4.0.0

How to fix CVE-2025-59839

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-59839. EPSS is 0.31%. Act only if a listed version of StarCitizenWiki mediawiki-extensions-EmbedVideo is installed.

Which versions are affected?

Compare what you have installed with StarCitizenWiki mediawiki-extensions-EmbedVideo ≤ 4.0.0 ≤ 4.0.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.31%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 25, 2025 · EUVD

    Detected

    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.

  2. Sep 25, 2025 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-59839

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-59839

    30-day exploitation probability 0.31%

    first.org
  • EUVDVulnerability recordEUVD-2025-31038

    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 ele

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 29, 2026
  • CVE.orgOct 23, 2026
  • EUVDOct 23, 2026