CVE-2025-6596

Vector inserts portlet labels as HTML, allowing for stored XSS through system messages

State: Published
Severity: 0.0 None
Published: Feb 2, 2026
Updated: Feb 3, 2026
Reserved: Jun 24, 2025

Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Vector. This vulnerability is associated with program files resources/skins.Vector.Js/portlets.Js, resources/skins.Vector.Legacy.Js/portlets.Js.

This issue affects Vector: from >= 1.40.0 before 1.42.7, 1.43.2, 1.44.0.

Scores

CVSS	Score	Vector	Source
4.0	0.0 None	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N	wikimedia-foundation

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

Affected Products

Product	Versions
VectorWikimedia Foundation	>= 1.40.0 to before 1.42.7, 1.43.2, 1.44.0Affected

References

https://phabricator.wikimedia.org/T396685

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.