Bug 2543739 (CVE-2026-103045)

Summary: CVE-2026-103045 mediawiki: MediaWiki: Stored cross-site scripting in Refreshed skin
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
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Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the MediaWiki Refreshed skin. The application fails to properly sanitize user-supplied input prior to rendering web pages, resulting in a stored cross-site scripting (XSS) vulnerability. A remote attacker could exploit this flaw by injecting malicious scripts into persistent content. When another user views the affected page, the script executes within the context of their browser session, potentially leading to session hijacking, unauthorized actions, or information disclosure.
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Bug Depends On: 2543882    
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Description OSIDB Bzimport 2026-09-29 23:08:56 UTC
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Refreshed skin allows Stored XSS.

This issue affects Mediawiki - Refreshed skin: before 1.46.1, 1.45.5, 1.43.10.