StarCitizenWiki EmbedVideo Extension up to 4.0.x Embed Service EmbedHtmlFormatter.php getUrl injection

Summaryinfo

A vulnerability, which was classified as problematic, has been found in StarCitizenWiki EmbedVideo Extension up to 4.0.x. This vulnerability affects the function getUrl of the file includes/EmbedService/EmbedHtmlFormatter.php of the component Embed Service. The manipulation leads to injection. This vulnerability is listed as CVE-2026-55692. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in StarCitizenWiki EmbedVideo Extension up to 4.0.x. This issue affects the function getUrl of the file includes/EmbedService/EmbedHtmlFormatter.php of the component Embed Service. The manipulation with an unknown input leads to a injection vulnerability. Using CWE to declare the problem leads to CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. Impacted is confidentiality. 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, with the default $wgEmbedVideoRequireConsent configuration enabled, includes/EmbedService/EmbedHtmlFormatter.php places JSON returned through includes/EmbedService/AbstractEmbedService.php into the data-mw-iframeconfig attribute without safely escaping single quotes. Attacker-controlled archiveorg identifiers and wistia or sharepoint URLs accepted by the affected service validators can cause getUrl() output to terminate the attribute and inject event-handler attributes into the generated figure element. A user able to edit a wiki page can store JavaScript that executes in the wiki origin when visitors render the page. This issue is fixed in version 4.1.0.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-55692 since 06/17/2026. The exploitation is known to be easy. The attack may be initiated remotely. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1055 according to MITRE ATT&CK.

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

Upgrading to version 4.1.0 eliminates this vulnerability.

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Productinfo

Type

• Content Management System

Vendor

• StarCitizenWiki

Name

• EmbedVideo Extension

Version

• 4.0

CPE 2.3info

• 🔒

CPE 2.2info

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