Wikimedia Foundation Mediawiki - Wikilambda Extension vulnerabilities

2 CVEs affecting Wikimedia Foundation Mediawiki - Wikilambda Extension, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-100383, published 2026-09-25.

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• CVE-2026-100377, published 2026-09-25. Medium severity, CVSS 6.9. EPSS: 0.3% chance of exploitation in the next 30 days. Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - WikiLambda Extension allows Excavation. This issue affects Mediawiki - WikiLambda…
• CVE-2026-100383, published 2026-09-25. Medium severity, CVSS 4.8. EPSS: 0.3% chance of exploitation in the next 30 days. Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - WikiLambda Extension allows Cross-Site Scripting…