CVE-2026-55690: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in StarCitizenWiki mediawiki-extensions-EmbedVideo
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. Prior to 4.1.0, EmbedServiceFactory::newFromName in includes/EmbedService/EmbedServiceFactory.php interpolates an attacker-controlled unknown service name into exception text, and includes/EmbedVideo.php returns that text as HTML through the isHtml output path without neutralization. Both the #ev parser function and the evl parser form can reach this error path. A user able to edit a wiki page can inject stored HTML or JavaScript into the error output, causing code to execute in the wiki origin for visitors who render the page. This issue is fixed in version 4.1.0.
CVE-2026-55690: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in StarCitizenWiki mediawiki-extensions-EmbedVideo
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. Prior to 4.1.0, EmbedServiceFactory::newFromName in includes/EmbedService/EmbedServiceFactory.php interpolates an attacker-controlled unknown service name into exception text, and includes/EmbedVideo.php returns that text as HTML through the isHtml output path without neutralization. Both the #ev parser function and the evl parser form can reach this error path. A user able to edit a wiki page can inject stored HTML or JavaScript into the error output, causing code to execute in the wiki origin for visitors who render the page. This issue is fixed in version 4.1.0.
CVSS v3.1
Score 7.5high
Affected software
StarCitizenWiki
mediawiki-extensions-EmbedVideo
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-17T00:13:10.650Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa9769455bf5e2cf5196305
Added to database: 09/15/2026, 16:47:16 UTC
Last updated: 09/15/2026, 16:47:16 UTC
Views: 1
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