Bug 2009507 (CVE-2021-41798)

Summary:	CVE-2021-41798 mediawiki: Cross-site scripting (XSS) in Special:Search
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	aos-bugs, axel.thimm, bmontgom, eparis, jburrell, jokerman, mike, nstielau, puiterwijk, shurley, sponnaga, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	mediawiki 1.31.16, mediawiki 1.35.4, mediawiki 1.36.2	Doc Type:	If docs needed, set a value
Doc Text:	Cross-site scripting (XSS) vulnerability was found in mediawiki. Due to insufficient sanitization of user-supplied data in Special:Search function a remote attacker can permanently inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-02 00:21:08 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:	2010198
Bug Blocks:	2009518

Description Pedro Sampaio 2021-09-30 19:50:31 UTC

A flaw was found in Mediawiki before 1.31.16, 1.35.4 and 1.36.2. A cross-site scripting vulnerability in Special:Search may lead to remote code execution in the victim's browser via a malicious link.

References:

https://lists.wikimedia.org/hyperkitty/list/mediawiki-announce@lists.wikimedia.org/message/2IFS5CM2YV4VMSODPX3J2LFHKSEWVFV5/
https://phabricator.wikimedia.org/T285515

Comment 2 juneau 2021-10-01 14:24:39 UTC

OSD notaffected per parent OCP.

Comment 3 Product Security DevOps Team 2021-10-02 00:21:08 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-41798

Comment 4 Przemyslaw Roguski 2021-10-04 07:44:19 UTC

Created mediawiki tracking bugs for this issue:

Affects: fedora-all [bug 2010198]