CVE-2025-61682
High
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.
SeverityHigh
CVSS8.6
Exploit probability—
ProductMediawiki/semantic-media-wiki
PublishedSep 18, 2026
First seenSep 18, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- mediawiki/semantic-media-wiki7.0.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mediawiki/semantic-media-wikiPackagist | 3.1.0 ≤ v < 7.0.0 | 7.0.0 |
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