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 versions 1.43, 1.44, and 1.45.

More information : https://gerrit.wikimedia.org/r/q/I1fc7b7e1d234b0aaf9f7d782a65da1451577587e