Vulnerability identifier: #VU76654

Vulnerability risk: Low

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-23755

CWE-ID: CWE-799

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Joomla!
Web applications / CMS

Vendor: Joomla!

Description

The vulnerability allows a remote attacker to perform brute-force attack.

The vulnerability exists due to missing rate limitation checks within the mfa screen. A remote attacker can perform brute-force attacks against MFA methods.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Joomla!: 4.3.0 - 4.3.1, 4.2.0 - 4.2.9

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External links
http://developer.joomla.org/security-centre/900-20230502-core-bruteforce-prevention-within-the-mfa-screen.html

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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.