Vulnerability identifier: #VU69694

Vulnerability risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-41921

CWE-ID: CWE-20

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 perform a denial of service (DoS) attack.

The vulnerability exists due to missing limits on the amount of text published by application users. A remote user post a chat message of an unlimited lengt and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Discourse: 2.9.0 beta1 - 2.9.0 beta12

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External links
http://github.com/discourse/discourse/security/advisories/GHSA-mfh7-6cv6-qccc
http://github.com/discourse/discourse/commit/3de765c89524a526ce611e11468d758a471a933f

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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