QwikSec

Security Database

CVE

CWE

Training

CVE-2025-59839

Published: Sep 25, 2025

Modified: Sep 25, 2025

PUBLISHED

CVSS v3.1

8.6

HIGH

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. 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.

Vendor	Product	Versions
StarCitizenWiki	mediawiki-extensions-EmbedVideo	affected `<= 4.0.0`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

Low

References

https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/security/advisories/GHSA-4j5h-mvj3-m48v

x_refsource_CONFIRM

https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/commit/4e075d3dc9a15a3ee53f449a684d5ab847e52f01

x_refsource_MISC

https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/blob/440fb331a84b2050f4cc084c1d31d58a1d1c202d/resources/ext.embedVideo.videolink.js#L5-L20

x_refsource_MISC

https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/blob/440fb331a84b2050f4cc084c1d31d58a1d1c202d/resources/modules/iframe.js#L139-L155

x_refsource_MISC

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