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Status published
Unknown
CVE-2025-6596
Vector inserts portlet labels as HTML, allowing for stored XSS through system messages
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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Low
2.3
Affected Vendor
Wikimedia Foundation
View all reports →Affected Software
Vector
Vulnerable Versions:
>= 1.40.0
Timeline
Official Publish:
February 2nd, 2026
Last Modified:
February 3rd, 2026
Added to House:
July 22nd, 2026