Vulnerability identifier: #VU86656

Vulnerability risk: Low

CVSSv3.1: 3 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-21723

CWE-ID: CWE-601

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Joomla!
Web applications / CMS

Vendor: Joomla!

Description

The vulnerability allows a remote attacker to redirect victims to arbitrary URL.

The vulnerability exists due to improper sanitization of user-supplied data in the installation application. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.

Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Joomla!: 5.0.0 - 5.0.2, 4.4.0 - 4.4.2, 4.3.0 - 4.3.4, 4.2.0 - 4.2.9, 4.1.0 - 4.1.5, 4.0.0 - 4.0.6, 3.10.0 - 3.10.14, 3.9.0 - 3.9.28, 3.8.0 - 3.8.13, 3.7.0 - 3.7.5, 3.6.0 - 3.6.5, 3.5.0 - 3.5.9, 3.0.0 - 3.0.4, 3.3.0 - 3.3.6, 3.2.0 - 3.2.7, 3.4.0 - 3.4.8, 3.1.0 - 3.1.6, 2.5.0 - 2.5.28, 1.7.0 - 1.7.5, 1.6.0 - 1.6.6, 1.5 - 1.5.26

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External links
http://developer.joomla.org/security-centre/926-20240202-core-open-redirect-in-installation-application.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.