QwikSec

Security Database

CVE

CWE

Training

CVE-2026-39933

Published: Apr 7, 2026

Modified: Apr 8, 2026

PUBLISHED

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.

Vendor	Product	Versions
The Wikimedia Foundation	Mediawiki - GlobalWatchlist Extension	unaffected `1.43` unaffected `1.44` unaffected `1.45` affected `0 - < 1.43`

Weaknesses (CWE)

References

https://phabricator.wikimedia.org/T418179

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

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