Bug 2236453 (CVE-2023-40320, MSA-23-0023)

Summary:	CVE-2023-40320 moodle: Stored self-XSS escalated to stored XSS via OAuth 2 login
Product:	[Other] Security Response	Reporter:	TEJ RATHI <trathi>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	moodle 4.2.2, moodle 4.1.5, moodle 4.0.10, moodle 3.11.16, moodle 3.9.23	Doc Type:	---
Doc Text:	A vulnerability was found in Moodle where, it is possible to escalate stored self-XSS to stored XSS where users login via OAuth 2.	Story Points:	---
Clone Of:		Environment:
Last Closed:		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:	2236459, 2236460
Bug Blocks:	2236401

Description TEJ RATHI 2023-08-31 10:17:52 UTC

It was possible to escalate stored self-XSS to stored XSS where users login via OAuth 2.

Versions affected: 4.2 to 4.2.1, 4.1 to 4.1.4, 4.0 to 4.0.9, 3.11 to 3.11.15, 3.9 to 3.9.22 and earlier unsupported 

Versions fixed: 4.2.2, 4.1.5, 4.0.10, 3.11.16 and 3.9.23

https://moodle.org/mod/forum/discuss.php?d=449644
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-78685

Comment 1 TEJ RATHI 2023-08-31 10:21:06 UTC

Created moodle tracking bugs for this issue:

Affects: epel-7 [bug 2236459]
Affects: fedora-all [bug 2236460]