#VU71599 Improper access control in Discourse - CVE-2023-23620

Vulnerability identifier: #VU71599

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-23620

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Discourse
Web applications / Forum & blogging software

Vendor: Civilized Discourse Construction Kit, Inc.

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote attacker can bypass implemented security restrictions and access latest or top routes for restricted tags.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Discourse: 0.8.0 - 3.0.0

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External links
https://github.com/discourse/discourse/security/advisories/GHSA-hvj9-g84x-5prx

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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.