Multiple vulnerabilities in Flarum

Published: 2023-01-20

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-22487 CVE-2023-22488
CWE-ID	CWE-284 CWE-862
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Flarum Web applications / Other software
Vendor	Flarum

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper access control

EUVDB-ID: #VU71384

Risk: Medium

CVSSv4.0: 5.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-22487

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

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 user can bypass implemented security restrictions and read any post on the forum.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Flarum: 1.0.0 - 1.6.2

CPE2.3

External links

https://github.com/flarum/framework/commit/ab1c868b978e8b0d09a5d682c54665dae17d0985
https://github.com/flarum/framework/security/advisories/GHSA-22m9-m3ww-53h3

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.

2) Missing Authorization

EUVDB-ID: #VU71385