CVE-2025-6594 Details
Description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files resources/src/mediawiki.Special.Apisandbox/ApiSandbox.Js. This issue affects MediaWiki: from 1.27.0 before 1.39.13, 1.42.7 1.43.2, 1.44.0.
A cross-site scripting (XSS) vulnerability has been identified in the Wikimedia Foundation's MediaWiki, specifically within the Special:ApiSandbox page. This issue affects MediaWiki versions 1.27.0 prior to 1.39.13, as well as 1.42.7, 1.43.2, and 1.44.0. The vulnerability arises from improper handling of input during web page generation, allowing users to inject malicious scripts that could be executed in the context of the user's browser.
Users can update to MediaWiki versions 1.39.13, 1.42.7, 1.43.2, or 1.44.0 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Feb 2, 2026CISA-ADP
Assessed Feb 3, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://phabricator.wikimedia.org/T395063 | wikimedia-foundation | ExploitIssue TrackingTechnical DescriptionVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | wikimedia-foundation |
Affected Products
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | wikimedia-foundation |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Feb 3, 2026 | CVE Modified | CISA-ADP |
| Feb 2, 2026 | New CVE Received | wikimedia-foundation |
Volerion