Is CVE-2026-116882 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-116882?

CVE-2026-116882 has a CVSS v3 severity of MEDIUM (4.8).

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CVE-2026-116882

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.