CVE-2026-116882

Medium

Description

Semantic MediaWiki from 4.2.0 before 7.3.1 contains a stored cross-site scripting vulnerability that allows authenticated profile or schema editors to inject HTML through FacetedSearch exploration-link labels. Attackers can store markup in the label, which ExploreListBuilder::buildHTML() passes unescaped to Html::rawElement(), altering the Special:FacetedSearch page and potentially running scripts in viewers' browsers.

SeverityMedium

CVSS4.8

Exploit probability—

ProductSemantic-mediawiki Semantic Mediawiki

PublishedOct 27, 2026

First seenOct 27, 2026

Weakness typeCWE-79Cross-site scripting (XSS)

How to fix

Update

semantic-mediawiki semantic_mediawiki7.3.1 or later

Vendor advisories

github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-3r5m-693w-jm33

Affected products

Product	Affected versions	Fixed in
semantic-mediawiki semantic_mediawiki	4.2.0 ≤ v < 7.3.1	7.3.1

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