Multiple vulnerabilities in Discourse

Published: 2025-02-05

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2024-55948 CVE-2025-23023
CWE-ID	CWE-346
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Discourse Web applications / Forum & blogging software
Vendor	Civilized Discourse Construction Kit, Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Origin validation error

EUVDB-ID: #VU103640

Risk: High

CVSSv4.0: 6.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2024-55948

CWE-ID: CWE-346 - Origin Validation Error

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the cache poisoning issue within XHR requests. A remote attacker can use a specially crafted XHR request to poison the anonymous cache.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Discourse: 3.3.0 beta1 - 3.4.0 beta2

CPE2.3

External links

https://github.com/discourse/discourse/security/advisories/GHSA-2352-252q-qc82

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Origin validation error

EUVDB-ID: #VU103651