Bug 2436106 (CVE-2025-61640)

Summary: CVE-2025-61640 MediaWiki: MediaWiki: Arbitrary code execution via Cross-site Scripting (XSS)
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in MediaWiki. A remote attacker can exploit this Cross-site Scripting (XSS) vulnerability by injecting malicious scripts into web pages due to improper neutralization of input during web page generation. This could lead to arbitrary code execution in the context of the user's browser, potentially allowing for information disclosure or session hijacking.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2436193, 2436199    
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Description OSIDB Bzimport 2026-02-03 00:01:45 UTC
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.Rcfilters/ui/RclToOrFromWidget.Js.

This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1.