Bug 2048950 (CVE-2021-46150)

Summary: CVE-2021-46150 mediawiki: XSS because of date mishandling
Product: [Other] Security Response Reporter: Marian Rehak <mrehak>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: aos-bugs, axel.thimm, bmontgom, eparis, jburrell, jokerman, mike, nstielau, puiterwijk, shurley, sponnaga
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
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Clone Of: Environment:
Last Closed: 2022-02-03 18:30:16 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2048951    
Bug Blocks: 2048943    

Description Marian Rehak 2022-02-01 08:56:24 UTC 
CheckUserLog allows CheckUser XSS because of date mishandling, as demonstrated by an XSS payload in MediaWiki:October.

Reference:

https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/extensions/CheckUser/+/79c2c49a18f96b159258958feca90fce964c350a
https://phabricator.wikimedia.org/T292795
Comment 1 Marian Rehak 2022-02-01 08:56:46 UTC 
Created mediawiki tracking bugs for this issue:

Affects: fedora-all [bug 2048951]
Comment 2 Michael Cronenworth 2022-02-01 14:33:08 UTC 
Please stop opening these bugs.

These are against extensions that are NOT shipped in the mediawiki package.