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.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-hg8h-557g-q8pp Semantic MediaWiki vulnerable to stored XSS through wikitext via improper use of non-reserved data attributes
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sat, 19 Sep 2026 22:30:00 +0000

Type Values Removed Values Added
First Time appeared Semantic-mediawiki
Semantic-mediawiki semantic Mediawiki
Vendors & Products Semantic-mediawiki
Semantic-mediawiki semantic Mediawiki

Fri, 18 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 18 Sep 2026 16:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Semantic MediaWiki vulnerable to stored XSS through wikitext via improper use of non-reserved data attributes
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-09-18T17:23:49.754Z

Reserved: 2025-09-29T20:25:16.182Z

Link: CVE-2025-61682

cve-icon Vulnrichment

Updated: 2026-09-18T17:23:45.520Z

cve-icon NVD

Status : Received

Published: 2026-09-18T16:17:03.717

Modified: 2026-09-18T18:17:04.307

Link: CVE-2025-61682

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-19T22:15:05Z

Weaknesses