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Vulnerability Details :

CVE-2025-6596

Summary
Assigner-wikimedia-foundation
Assigner Org ID-c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
Published At-02 Feb, 2026 | 22:58
Updated At-03 Feb, 2026 | 21:12
Rejected At-
Credits

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

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:wikimedia-foundation
Assigner Org ID:c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
Published At:02 Feb, 2026 | 22:58
Updated At:03 Feb, 2026 | 21:12
Rejected At:
▼CVE Numbering Authority (CNA)
Vector inserts portlet labels as HTML, allowing for stored XSS through system messages

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.

Affected Products
Vendor
Wikimedia FoundationWikimedia Foundation
Product
Vector
Repo
https://gerrit.wikimedia.org/g/mediawiki/skins/Vector/+/refs/heads/master
Program Files
  • resources/skins.vector.js/portlets.js
  • resources/skins.vector.legacy.js/portlets.js
Default Status
unaffected
Versions
Affected
  • From >= 1.40.0 before 1.42.7, 1.43.2, 1.44.0 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-79CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Type: CWE
CWE ID: CWE-79
Description: CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Metrics
VersionBase scoreBase severityVector
4.00.0NONE
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
Version: 4.0
Base score: 0.0
Base severity: NONE
Vector:
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
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://phabricator.wikimedia.org/T396685
N/A
Hyperlink: https://phabricator.wikimedia.org/T396685
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
Published At:02 Feb, 2026 | 23:16
Updated At:03 Feb, 2026 | 16:44

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.00.0NONE
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Secondary
Version: 4.0
Base score: 0.0
Base severity: NONE
Vector:
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-79Secondaryc4f26cc8-17ff-4c99-b5e2-38fc1793eacc
CWE ID: CWE-79
Type: Secondary
Source: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://phabricator.wikimedia.org/T396685c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
N/A
Hyperlink: https://phabricator.wikimedia.org/T396685
Source: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
Resource: N/A

Change History

0
Information is not available yet

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