StarCitizenWiki EmbedVideo Extension up to 4.0.x EmbedServiceFactory EmbedServiceFactory.php newFromName cross site scripting

Summaryinfo

A vulnerability classified as problematic has been found in StarCitizenWiki EmbedVideo Extension up to 4.0.x. Affected by this issue is the function EmbedServiceFactory::newFromName of the file includes/EmbedService/EmbedServiceFactory.php of the component EmbedServiceFactory. Performing a manipulation of the argument Name results in cross site scripting. This vulnerability is identified as CVE-2026-55690. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in StarCitizenWiki EmbedVideo Extension up to 4.0.x. This affects the function EmbedServiceFactory::newFromName of the file includes/EmbedService/EmbedServiceFactory.php of the component EmbedServiceFactory. The manipulation of the argument name with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-55690 since 06/17/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

By approaching the search of inurl:includes/EmbedService/EmbedServiceFactory.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 4.1.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-78831). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Content Management System

Vendor

• StarCitizenWiki

Name

• EmbedVideo Extension

Version

• 4.0

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion