Medium severityNVD Advisory· Published Apr 7, 2026· Updated Apr 8, 2026

CVE-2026-39933

Description

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 versions 1.43, 1.44, and 1.45.

Affected products

Wikimedia Foundation/Mediawiki Extensions Globalwatchlistinferred
Range: <1.43.1, <1.44.1, <1.45.1

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

gerrit.wikimedia.org/r/q/I1fc7b7e1d234b0aaf9f7d782a65da1451577587envd
phabricator.wikimedia.org/T418179nvd

News mentions

No linked articles in our index yet.

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epss	0.000
exploit	0.000
kev	0.000
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ransomware	0.000