CVE-2026-39937

Improper removal of sensitive information before storage or transfer vulnerability in The Wikimedia Foundation Mediawiki - CentralAuth Extension allows Resource Leak Exposure. The issue has been remediated on the master branch, and in the release branches for MediaWiki versions 1.43, 1.44, and 1....

CVE-2026-39933

Improper neutralization of input during web page generation 'cross-site scripting' vulnerability in The Wikimedia Foundation Mediawiki - GlobalWatchlist Extension allows Cross-Site Scripting XSS. The issue has been remediated on the master branch, and in the release branches for MediaWiki version...

CVE-2026-39935

Improper neutralization of input during web page generation 'cross-site scripting' vulnerability in The Wikimedia Foundation Mediawiki - CampaignEvents Extension allows Cross-Site Scripting XSS. This issue was remediated only on the master branch...

CVE-2026-39838

Improper neutralization of input during web page generation 'cross-site scripting' vulnerability in Wikimedia Foundation MediaWiki - ProofreadPage Extension allows XSS Targeting Non-Script Elements. The issue has been remediated on the master branch, and in the release branches for MediaWiki...

EUVD-2026-19980

Improper neutralization of input during web page generation 'cross-site scripting' vulnerability in The Wikimedia Foundation Mediawiki - CampaignEvents Extension allows Cross-Site Scripting XSS.This issue affects Mediawiki - CampaignEvents Extension: 1.43.7, 1.44.4, 1.45.2...

EUVD-2026-19976

Improper neutralization of input during web page generation 'cross-site scripting' vulnerability in The Wikimedia Foundation Mediawiki - GlobalWatchlist Extension allows Cross-Site Scripting XSS.This issue affects non release branches...

EUVD-2026-19982

Improper neutralization of input during web page generation 'cross-site scripting' vulnerability in The Wikimedia Foundation Mediawiki - Score Extension allows Cross-Site Scripting XSS.This issue affects Mediawiki - Score Extension...

EUVD-2026-19978

Loop with unreachable exit condition 'infinite loop' vulnerability in The Wikimedia Foundation Mediawiki - GrowthExperiments Extension allows Leveraging Time-of-Check and Time-of-Use TOCTOU Race Conditions.This issue affects Mediawiki - GrowthExperiments Extension: 1.45.2, 1.44.4, 1.43.7...

CVE-2026-39935

Improper neutralization of input during web page generation 'cross-site scripting' vulnerability in The Wikimedia Foundation Mediawiki - CampaignEvents Extension allows Cross-Site Scripting XSS. This issue was remediated only on the master branch...

CVE-2026-39936

Improper neutralization of input during web page generation 'cross-site scripting' vulnerability in The Wikimedia Foundation Mediawiki - Score Extension allows Cross-Site Scripting XSS. The issue has been remediated on the master branch, and in the release branches for MediaWiki versions 1.43,...

CVE-2026-39934

Loop with unreachable exit condition 'infinite loop' vulnerability in The Wikimedia Foundation Mediawiki - GrowthExperiments Extension allows Leveraging Time-of-Check and Time-of-Use TOCTOU Race Conditions. This issue was remediated only on the master branch...

CVE-2026-39933

Improper neutralization of input during web page generation 'cross-site scripting' vulnerability in The Wikimedia Foundation Mediawiki - GlobalWatchlist Extension allows Cross-Site Scripting XSS. The issue has been remediated on the master branch, and in the release branches for MediaWiki version...

CVE-2026-39936 Stored XSS in Score due to usage of non-reserved data attributes

Improper neutralization of input during web page generation 'cross-site scripting' vulnerability in The Wikimedia Foundation Mediawiki - Score Extension allows Cross-Site Scripting XSS. The issue has been remediated on the master branch, and in the release branches for MediaWiki versions 1.43,...

CVE-2026-39936 Stored XSS in Score due to usage of non-reserved data attributes

Improper neutralization of input during web page generation 'cross-site scripting' vulnerability in The Wikimedia Foundation Mediawiki - Score Extension allows Cross-Site Scripting XSS. The issue has been remediated on the master branch, and in the release branches for MediaWiki versions 1.43,...

CVE-2026-39936

Affected software: Wikimedia Foundation MediaWiki - Score Extension. Vulnerability: Stored XSS due to improper neutralization of input during web page generation via non-reserved data attributes. Impact: Cross-Site Scripting with low impacts to confidentiality, integrity, and availability, as per...

CVE-2026-39935

The CVE-2026-39935 entry describes a Cross-Site Scripting (XSS) vulnerability in The Wikimedia Foundation MediaWiki CampaignEvents Extension. Affected versions are 1.43.7, 1.44.4, and 1.45.2, where improper input neutralization during web page generation allows XSS. The issue is tied to the Campa...

CVE-2026-39935 XSS-via-i18n in localised wiki names

Improper neutralization of input during web page generation 'cross-site scripting' vulnerability in The Wikimedia Foundation Mediawiki - CampaignEvents Extension allows Cross-Site Scripting XSS. This issue was remediated only on the master branch...

CVE-2026-39935 XSS-via-i18n in localised wiki names

Improper neutralization of input during web page generation 'cross-site scripting' vulnerability in The Wikimedia Foundation Mediawiki - CampaignEvents Extension allows Cross-Site Scripting XSS. This issue was remediated only on the master branch...

CVE-2026-39934 Growth Experiments ReassignMenteesJob runs as an infinite loop

Loop with unreachable exit condition 'infinite loop' vulnerability in The Wikimedia Foundation Mediawiki - GrowthExperiments Extension allows Leveraging Time-of-Check and Time-of-Use TOCTOU Race Conditions. This issue was remediated only on the master branch...

CVE-2026-39934 Growth Experiments ReassignMenteesJob runs as an infinite loop

Loop with unreachable exit condition 'infinite loop' vulnerability in The Wikimedia Foundation Mediawiki - GrowthExperiments Extension allows Leveraging Time-of-Check and Time-of-Use TOCTOU Race Conditions. This issue was remediated only on the master branch...