Stored XSS Vulnerability in EmbedVideo MediaWiki Extension from StarCitizenWiki
CVE-2025-59839

8.6HIGH

Key Information:

Vendor

Starcitizenwiki

Status
Mediawiki-extensions-embedvideo
Vendor
CVE Published:
25 September 2025

What is CVE-2025-59839?

The EmbedVideo Extension for MediaWiki has a vulnerability that permits the injection of arbitrary attributes into HTML elements, leading to the potential for stored Cross-Site Scripting (XSS). This issue affects versions 4.0.0 and earlier and is particularly dangerous as it allows attackers to execute malicious scripts stored on the server, impacting users who interact with the modified pages. A patch has been released to address this vulnerability.

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Affected Version(s)

mediawiki-extensions-EmbedVideo <= 4.0.0

References

https://github.com/StarCitizenWiki/mediawiki-extensions-E...
x_refsource_CONFIRM
https://github.com/StarCitizenWiki/mediawiki-extensions-E...
x_refsource_MISC
https://github.com/StarCitizenWiki/mediawiki-extensions-E...
x_refsource_MISC

CVSS V3.1

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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