---
id: CVE-2025-61682
title: >-
  Semantic MediaWiki is a free, open-source extension to MediaWiki that lets
  users store and query data within the wiki's pages
summary: >-
  Semantic MediaWiki is a free, open-source extension to MediaWiki that lets
  users store and query data within the wiki's pages. Versions starting in 3.1.0
  and prior to 7.0.0 insert the unsanitized value of a data attribute into the
  DOM as…
severity: high
cvss: 8.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L'
cwe:
  - CWE-79
vendor: mediawiki
product: mediawiki/semantic-media-wiki
affected:
  - 'mediawiki/semantic-media-wiki >= 3.1.0, < 7.0.0'
patched:
  - mediawiki/semantic-media-wiki 7.0.0
published: '2026-09-18'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T21:22:19.873'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-61682'
references:
  - url: 'https://github.com/SemanticMediaWiki/SemanticMediaWiki/releases/tag/7.0.0'
    label: security-advisories@github.com
  - url: >-
      https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-hg8h-557g-q8pp
    label: security-advisories@github.com
  - url: >-
      https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-hg8h-557g-q8pp
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/advisories/GHSA-hg8h-557g-q8pp'
tags:
  - nvd
  - ghsa
  - composer
  - cve.org
  - exploit-available
epss: 0.00292
epssPercentile: 0.19348
aliases:
  - GHSA-hg8h-557g-q8pp
ecosystem: composer
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-18T17:23:36.648760Z'
ingestedAt: '2026-09-18T16:45:41.378Z'
---

## Overview

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. Versions starting in 3.1.0 and prior to 7.0.0 insert the unsanitized value of a data attribute into the DOM as HTML, allowing for stored XSS through wikitext. Version 7.0.0 patches the issue.

## Remediation

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

## Package advisory (CVE-2025-61682)

Affected packages:

- `mediawiki/semantic-media-wiki >= 3.1.0, < 7.0.0`

Patched in:

- `mediawiki/semantic-media-wiki 7.0.0`

Source: https://github.com/advisories/GHSA-hg8h-557g-q8pp