#VU77503 Incorrect permission assignment for critical resource in Discourse - CVE-2023-31142

Vulnerability identifier: #VU77503

Vulnerability risk: Low

CVSSv4.0: 0.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-31142

CWE-ID: CWE-732

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 user to compromise the target system.

The vulnerability exists due to incorrect permission assignment for critical resource. A remote administrator can set back to default general category permissions.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Discourse: 3.0 beta - 3.1.0 beta4

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External links
https://github.com/discourse/discourse/security/advisories/GHSA-286w-97m2-78x2

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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