Authenticated PHP file upload in Joomla!

1) Arbitrary file upload

EUVDB-ID: #VU105612

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 - Unrestricted Upload of File with Dangerous Type

Exploit availability: No

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 - 5.2.4

CPE2.3

• cpe:2.3:a:joomla:joomla:4.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla:4.1.5:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla:4.2.9:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla:4.3.4:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla:4.4.11:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla:5.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla:5.1.4:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla:5.2.4:*:*:*:*:*:*:*

External links

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

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.