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Medium · 6.1 CVE-2026-116881 EUVD-2026-110709GHSA-g72f-25hp-crjf

Semantic MediaWiki 3.0.0 before 7.3.1 XSS via Property-Value Autocomplete

Published Oct 27, 2026 · Updated Nov 2, 2026 · Assigned by VulnCheck

Description

Semantic MediaWiki from 3.0.0 before 7.3.1 contains a cross-site scripting vulnerability that allows attackers to inject markup by storing malicious semantic property values rendered unescaped in autocomplete suggestions. When another user opens the property-value autocomplete with an empty query, jquery.autocomplete.js concatenates the raw PValueLookup API value into HTML via container.html(), altering the dropdown and potentially executing script.

Affected products

VendorProductAffectedFixed
SemanticMediaWiki SemanticMediaWiki 3.0.0 – < 7.3.1 7.3.1

References