Known Vulnerabilities for MediaWiki by Wikimedia Foundation

Listed below are 10 of the newest known vulnerabilities associated with "MediaWiki" by "Wikimedia Foundation".

These CVEs are retrieved based on exact matches on listed software, hardware, and vendor information (CPE data) as well as a keyword search to ensure the newest vulnerabilities with no officially listed software information are still displayed.

Data on known vulnerable versions is also displayed based on information from known CPEs

Known Vulnerabilities

CVE Shortened Description Severity Publish Date Last Modified
CVE-2026-103585 json Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation Media... Not Provided 2026-09-30 2026-10-01
CVE-2026-103584 json Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation Media... Not Provided 2026-09-30 2026-10-01
CVE-2026-103446 json Authorization bypass through User-Controlled key vulnerability in The Wikimedia Foundation MediaWiki WikiLambda extension all... Not Provided 2026-09-30 2026-10-06
CVE-2026-103445 json Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation Media... Not Provided 2026-09-30 2026-09-30
CVE-2026-103444 json Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation Media... Not Provided 2026-09-30 2026-09-30
CVE-2026-103443 json Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation Media... Not Provided 2026-09-30 2026-09-30
CVE-2026-103442 json External control of system or configuration setting vulnerability in The Wikimedia Foundation MediaWiki CentralAuth extension... Not Provided 2026-09-30 2026-09-30
CVE-2026-103441 json Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Exec... Not Provided 2026-09-30 2026-09-30
CVE-2026-103440 json Exposure of sensitive information through data queries vulnerability in The Wikimedia Foundation MediaWiki PageTriage extensi... Not Provided 2026-09-30 2026-09-30
CVE-2026-103439 json Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation Media... Not Provided 2026-09-30 2026-09-30
Results limited to 10 most recent vulnerabilities

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