Medium severity6.1NVD Advisory· Published Sep 18, 2026· Updated Sep 24, 2026

CVE-2026-77606

Description

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. Prior to version 7.2.0, when headers=plain, table header text was emitted into ` via a raw HTML path. User-controlled mainlabel` content could therefore become executable HTML. Version 7.2.0 fixes the issue.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
mediawiki/semantic-media-wikiPackagist	< 7.2.0	7.2.0

Affected products

Semantic Mediawiki/Semantic Mediawikillm-fuzzy
Range: <7.2.0

Patches

Vulnerability mechanics

References

github.com/advisories/GHSA-3jp5-3h47-28qfghsaADVISORY
github.com/SemanticMediaWiki/SemanticMediaWiki/releases/tag/7.2.0nvdWEB
github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-3jp5-3h47-28qfnvdWEB

News mentions

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cvss	0.397
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000