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.

CVSS

No CVSS.

References

Link	Resource
https://gerrit.wikimedia.org/r/q/I1fc7b7e1d234b0aaf9f7d782a65da1451577587e
https://phabricator.wikimedia.org/T418179

Configurations

No configuration.

History

21 Jul 2026, 19:10

Type	Values Removed	Values Added
Summary		(es) Neutralización incorrecta de la entrada durante la generación de páginas web ('cross-site scripting') vulnerabilidad en la extensión GlobalWatchlist de Wikimedia Foundation Mediawiki permite Cross-Site Scripting (XSS). Este problema afecta a las ramas que no son de lanzamiento.

08 Apr 2026, 22:16

Type	Values Removed	Values Added
Summary	(en) 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.	(en) 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.

07 Apr 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-07 22:16

Updated : 2026-07-21 19:10

NVD link : CVE-2026-39933

Mitre link : CVE-2026-39933

CVE.ORG link : CVE-2026-39933

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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