Bug 2255582 (CVE-2023-51704)

Summary: CVE-2023-51704 mediawiki: group-.*-member messages are not properly escaped on Special:log/rights
Product: [Other] Security Response Reporter: TEJ RATHI <trathi>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: MediaWiki 1.35.14, MediaWiki 1.39.6, MediaWiki 1.40.2 Doc Type: ---
Doc Text:
A flaw was found in the Special:log/rights page in MediaWiki. Messages related to group memberships (group-*-member) within includes/logging/RightsLogFormatter.php are susceptible to cross-site scripting (XSS) attacks due to inadequate escape handling. This issue could enable an attacker to execute malicious scripts within the affected page, posing a risk of unauthorized code execution or other malicious activities.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2255583    
Bug Blocks: 2255584    

Description TEJ RATHI 2023-12-22 06:18:42 UTC 
An issue was discovered in MediaWiki before 1.35.14, 1.36.x through 1.39.x before 1.39.6, and 1.40.x before 1.40.2. In includes/logging/RightsLogFormatter.php, group-*-member messages can result in XSS on Special:log/rights.

https://phabricator.wikimedia.org/T347726
https://lists.wikimedia.org/hyperkitty/list/mediawiki-announce@lists.wikimedia.org/thread/TDBUBCCOQJUT4SCHJNPHKQNPBUUETY52/
Comment 1 TEJ RATHI 2023-12-22 06:19:05 UTC 
Created mediawiki tracking bugs for this issue:

Affects: fedora-all [bug 2255583]