CVE-2022-23548

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 2.9.0.beta16 on the `beta` and `tests-passed` branches, parsing posts can be susceptible to regular expression denial of service (ReDoS) attacks. This issue is patched in versions 2.8.14 and 2.9.0.beta16. There are no known workarounds.

*Credits: N/A

CVSS Scores

NISTv3.1 6.5

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-01-19 CVE Reserved
2023-01-05 CVE Published
2024-07-28 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-1333: Inefficient Regular Expression Complexity

CAPEC

References (2)

URL	Tag	Source
https://github.com/discourse/discourse/security/advisories/GHSA-7rw2-f4x7-7pxf	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/discourse/discourse/pull/19737	2023-05-16

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				< 2.8.14 Search vendor "Discourse" for product "Discourse" and version " < 2.8.14"		-		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta1		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta10		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta11		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta12		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta13		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta14		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta2		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta3		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta4		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta5		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta6		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta7		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta8		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				3.0.0 Search vendor "Discourse" for product "Discourse" and version "3.0.0"		beta15		Affected