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

CVE-2026-39838

Description

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 versions 1.43, 1.44, and 1.45.

Affected products

Wikimedia Foundation/Mediawiki Extensions Proofreadpageinferred

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

gerrit.wikimedia.org/r/q/Idd51e18479b32b7176b43ff74ca1c49d6bdd0628nvd
phabricator.wikimedia.org/T406088nvd

News mentions

No linked articles in our index yet.

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