Bug 2328903 (CVE-2023-2142)

Summary:	CVE-2023-2142 Nunjucks: Nunjucks autoescape bypass leads to cross site scripting
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	abarbaro, cdaley, jchui, jhe, ktsao, nboldt, psrna
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in Nunjucks versions prior to 3.2.4. This vulnerability can allow attackers to inject cross-site scripting (XSS) payloads via bypassing autoescape functionality by using a backslash (\) character when two user-controlled parameters are on the same line in the views.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
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Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2328913, 2328914, 2328915, 2328917, 2328918
Bug Blocks:

Description OSIDB Bzimport 2024-11-26 12:01:11 UTC

In Nunjucks versions prior to version 3.2.4, it was 
possible to bypass the restrictions which are provided by the autoescape
 functionality. If there are two user-controlled parameters on the same 
line used in the views, it was possible to inject cross site scripting 
payloads using the backslash \ character.