#VU105612 Arbitrary file upload in Joomla! - CVE-2025-22213

Vulnerability identifier: #VU105612

Vulnerability risk: Medium

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-22213

CWE-ID: CWE-434

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Joomla!
Web applications / CMS

Vendor: Joomla!

Description

The vulnerability allows a remote user to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload within the media manager. A remote authenticated user with "edit" permissions can upload and execute arbitrary PHP files on the server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Joomla!: 4.0.0 - 4.0.6, 4.1.0 - 4.1.5, 4.2.0 - 4.2.9, 4.3.0 - 4.3.4, 4.4.0 - 4.4.11, 5.0.0 - 5.0.3, 5.1.0 - 5.1.4, 5.2.0 - 5.2.4

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External links
https://developer.joomla.org/security-centre/961-20250301-core-malicious-file-uploads-via-media-managere-malicious-file-uploads-via-media-manager.html

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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