Information disclosure in NodeBB

1) Origin validation error

EUVDB-ID: #VU78620

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-2850

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 missing origin validation in WebSockets. A remote attacker can trick a victim to visit a specially crafted website and gain access to private messages or posts.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

NodeBB: 2.8.0 - 3.1.2

External links

http://github.com/NodeBB/NodeBB/security/advisories/GHSA-4qcv-qf38-5j3j

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.