CVE-2023-22468

Discourse is an open source platform for community discussion. Versions prior to 2.8.13 (stable), 3.0.0.beta16 (beta) and 3.0.0beta16 (tests-passed), are vulnerable to cross-site Scripting. A maliciously crafted URL can be included in a post to carry out cross-site scripting attacks on sites with disabled or overly permissive CSP (Content Security Policy). Discourse's default CSP prevents this vulnerability. This vulnerability is patched in versions 2.8.13 (stable), 3.0.0.beta16 (beta) and 3.0.0beta16 (tests-passed). As a workaround, enable and/or restore your site's CSP to the default one provided with Discourse.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/discourse/discourse/security/advisories/GHSA-8mr2-xf8r-wr8m	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:discourse:discourse::::::::
	cpe:2.3:a:discourse:discourse:2.9.0:beta1:::beta:::*
	cpe:2.3:a:discourse:discourse:2.9.0:beta10:::beta:::*
	cpe:2.3:a:discourse:discourse:2.9.0:beta11:::beta:::*
	cpe:2.3:a:discourse:discourse:2.9.0:beta12:::beta:::*
	cpe:2.3:a:discourse:discourse:2.9.0:beta13:::beta:::*
	cpe:2.3:a:discourse:discourse:2.9.0:beta14:::beta:::*
	cpe:2.3:a:discourse:discourse:2.9.0:beta2:::beta:::*
	cpe:2.3:a:discourse:discourse:2.9.0:beta3:::beta:::*
	cpe:2.3:a:discourse:discourse:2.9.0:beta4:::beta:::*
	cpe:2.3:a:discourse:discourse:2.9.0:beta5:::beta:::*
	cpe:2.3:a:discourse:discourse:2.9.0:beta6:::beta:::*
	cpe:2.3:a:discourse:discourse:2.9.0:beta7:::beta:::*
	cpe:2.3:a:discourse:discourse:2.9.0:beta8:::beta:::*
	cpe:2.3:a:discourse:discourse:2.9.0:beta9:::beta:::*
	cpe:2.3:a:discourse:discourse:3.0.0:beta15:::beta:::*

History

07 Nov 2023, 04:06

Type	Values Removed	Values Added
Summary	Discourse is an open source platform for community discussion. Versions prior to 2.8.13 (stable), 3.0.0.beta16 (beta) and 3.0.0beta16 (tests-passed), are vulnerable to cross-site Scripting. A maliciously crafted URL can be included in a post to carry out cross-site scripting attacks on sites with disabled or overly permissive CSP (Content Security Policy). Discourse's default CSP prevents this vulnerability. This vulnerability is patched in versions 2.8.13 (stable), 3.0.0.beta16 (beta) and 3.0.0beta16 (tests-passed). As a workaround, enable and/or restore your site's CSP to the default one provided with Discourse.	Discourse is an open source platform for community discussion. Versions prior to 2.8.13 (stable), 3.0.0.beta16 (beta) and 3.0.0beta16 (tests-passed), are vulnerable to cross-site Scripting. A maliciously crafted URL can be included in a post to carry out cross-site scripting attacks on sites with disabled or overly permissive CSP (Content Security Policy). Discourse's default CSP prevents this vulnerability. This vulnerability is patched in versions 2.8.13 (stable), 3.0.0.beta16 (beta) and 3.0.0beta16 (tests-passed). As a workaround, enable and/or restore your site's CSP to the default one provided with Discourse.

06 Feb 2023, 15:19

Type	Values Removed	Values Added
CPE		cpe:2.3:a:discourse:discourse:2.9.0:beta13:::beta:::* cpe:2.3:a:discourse:discourse:2.9.0:beta8:::beta:::* cpe:2.3:a:discourse:discourse:2.9.0:beta3:::beta:::* cpe:2.3:a:discourse:discourse:2.9.0:beta2:::beta:::* cpe:2.3:a:discourse:discourse:2.9.0:beta6:::beta:::* cpe:2.3:a:discourse:discourse:2.9.0:beta4:::beta:::* cpe:2.3:a:discourse:discourse:2.9.0:beta1:::beta:::* cpe:2.3:a:discourse:discourse:2.9.0:beta10:::beta:::* cpe:2.3:a:discourse:discourse:2.9.0:beta7:::beta:::* cpe:2.3:a:discourse:discourse:2.9.0:beta14:::beta:::* cpe:2.3:a:discourse:discourse:2.9.0:beta5:::beta:::* cpe:2.3:a:discourse:discourse:2.9.0:beta9:::beta:::* cpe:2.3:a:discourse:discourse:2.9.0:beta12:::beta:::* cpe:2.3:a:discourse:discourse:::::::: cpe:2.3:a:discourse:discourse:3.0.0:beta15:::beta:::* cpe:2.3:a:discourse:discourse:2.9.0:beta11:::beta:::*
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.4
References	~~(MISC) https://github.com/discourse/discourse/security/advisories/GHSA-8mr2-xf8r-wr8m -~~	(MISC) https://github.com/discourse/discourse/security/advisories/GHSA-8mr2-xf8r-wr8m - Third Party Advisory
First Time		Discourse Discourse discourse

26 Jan 2023, 21:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-01-26 21:18

Updated : 2023-12-10 14:48

NVD link : CVE-2023-22468

Mitre link : CVE-2023-22468

CVE.ORG link : CVE-2023-22468

JSON object : View

Products Affected

discourse

discourse

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

5.4 /10