---
id: CVE-2026-55692
title: >-
  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
summary: >-
  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…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-79
  - CWE-80
vendor: StarCitizenWiki
product: mediawiki-extensions-EmbedVideo
affected:
  - mediawiki-extensions-EmbedVideo < 4.1.0
patched:
  - starcitizenwiki/embedvideo 4.1.0
published: '2026-09-15'
updated: '2026-09-15'
sourceUpdated: '2026-09-15T19:17:22.670'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-55692'
references:
  - url: >-
      https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/commit/370156335b325bb81d14d89edf0a1f2643d50a84
    label: security-advisories@github.com
  - url: >-
      https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/releases/tag/v4.1.0
    label: security-advisories@github.com
  - url: >-
      https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/security/advisories/GHSA-5c7p-g73q-rpg5
    label: security-advisories@github.com
  - url: >-
      https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/security/advisories/GHSA-5c7p-g73q-rpg5
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/advisories/GHSA-5c7p-g73q-rpg5'
tags:
  - nvd
  - cve.org
  - exploit-available
  - ghsa
  - composer
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-15T19:03:29.897590Z'
ecosystem: composer
ingestedAt: '2026-06-22T13:35:24.292Z'
epss: 0.00492
epssPercentile: 0.39789
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-55692)

Affected packages:

- `starcitizenwiki/embedvideo <= 4.0.0`

Patched in:

- `starcitizenwiki/embedvideo 4.1.0`

Source: https://github.com/advisories/GHSA-5c7p-g73q-rpg5