CVE-2025-61638

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki, Wikimedia Foundation Parsoid. This vulnerability is associated with program files includes/parser/Sanitizer.Php, src/Core/Sanitizer.Php. This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1; Parsoid: from * before 0.16.6, 0.20.4, 0.21.1.

CVSS v3 4.8 MEDIUM

4.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.7 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://phabricator.wikimedia.org/T401099	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mediawiki:mediawiki::::::::
	cpe:2.3:a:mediawiki:mediawiki::::::::
	cpe:2.3:a:mediawiki:mediawiki::::::::

Configuration 2 (hide)

OR	cpe:2.3:a:wikimedia:parsoid::::::node.js::*
	cpe:2.3:a:wikimedia:parsoid::::::node.js::*
	cpe:2.3:a:wikimedia:parsoid::::::node.js::*

History

16 Mar 2026, 18:34

Type	Values Removed	Values Added
References	~~() https://phabricator.wikimedia.org/T401099 -~~	() https://phabricator.wikimedia.org/T401099 - Third Party Advisory
CPE		cpe:2.3:a:wikimedia:parsoid::::::node.js::* cpe:2.3:a:mediawiki:mediawiki::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 4.8
First Time		Mediawiki Mediawiki mediawiki Wikimedia Wikimedia parsoid
Summary		(es) Vulnerabilidad de Neutralización Incorrecta de la Entrada Durante la Generación de Páginas Web (XSS o 'cross-site scripting') en Wikimedia Foundation MediaWiki, Wikimedia Foundation Parsoid. Esta vulnerabilidad está asociada con los archivos de programa includes/parser/Sanitizer.PHP, src/Core/Sanitizer.PHP. Este problema afecta a MediaWiki: desde * antes de 1.39.14, 1.43.4, 1.44.1; Parsoid: desde * antes de 0.16.6, 0.20.4, 0.21.1.

03 Feb 2026, 00:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-03 00:16

Updated : 2026-03-16 18:34

NVD link : CVE-2025-61638

Mitre link : CVE-2025-61638

CVE.ORG link : CVE-2025-61638

JSON object : View

Products Affected

mediawiki

mediawiki

wikimedia

parsoid

CWE

CWE-79

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

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