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Wikimedia Foundation Mediawiki - Wikibase Extension vulnerabilities

2 known vulnerabilities, 0 confirmed exploited in the wild (CISA KEV), 2 published in the last 12 months.

Check whether your Wikimedia Foundation Mediawiki - Wikibase Extension version is affected

Latest Wikimedia Foundation Mediawiki - Wikibase Extension vulnerabilities

• CVE-2026-100245 — Stored XSS on Wikibase Special:SetSiteLink via unescaped system message (CVSS 6.1)
• CVE-2026-100380 — Reflected XSS in Wikibase Special:SetLabel language validation (CVSS 5.3)