MediaWiki Wikibase Extension 1.46.0 Cross Site Scripting

MediaWiki Wikibase Extension versions before 1.46.1, 1.45.5, and 1.43.10 contain a reflected cross site scripting vulnerability in Special:SetLabel language validation. The supplied proof of concept submits a harmless marker and detects unescaped reflection...

CVE-2026-100380 Reflected XSS in Wikibase Special:SetLabel language validation

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Wikimedia Foundation Mediawiki - Wikibase Extension allows Cross-Site Scripting XSS. This issue affects Mediawiki - Wikibase Extension: from before 1.46.1, 1.45.5, 1.43.10...

CVE-2026-100380 Reflected XSS in Wikibase Special:SetLabel language validation

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Wikimedia Foundation Mediawiki - Wikibase Extension allows Cross-Site Scripting XSS. This issue affects Mediawiki - Wikibase Extension: from before 1.46.1, 1.45.5, 1.43.10...