CVE-2026-39838

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.

CVSS

No CVSS.

References

Link	Resource
https://gerrit.wikimedia.org/r/q/Idd51e18479b32b7176b43ff74ca1c49d6bdd0628
https://phabricator.wikimedia.org/T406088

Configurations

No configuration.

History

21 Jul 2026, 19:10

Type	Values Removed	Values Added
Summary		(es) Vulnerabilidad de neutralización incorrecta de la entrada durante la generación de páginas web ('cross-site scripting') en Wikimedia Foundation MediaWiki - Extensión ProofreadPage permite XSS dirigido a elementos no script. Este problema afecta a.

08 Apr 2026, 19:25

Type	Values Removed	Values Added
Summary	(en) Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation MediaWiki - ProofreadPage Extension allows XSS Targeting Non-Script Elements.This issue affects .	(en) 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.

07 Apr 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-07 20:16

Updated : 2026-07-21 19:10

NVD link : CVE-2026-39838

Mitre link : CVE-2026-39838

CVE.ORG link : CVE-2026-39838

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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