#VU105872 Arbitrary file upload in Groundhogg - CVE-2025-0394

Vulnerability identifier: #VU105872

Vulnerability risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-0394

CWE-ID: CWE-434

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Groundhogg
Web applications / Modules and components for CMS

Vendor: Adrian Tobey

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload in the gh_big_file_upload() function. A remote user can upload a malicious file and execute it on the server.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Groundhogg: 3.7.3 - 3.7.3.5

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External links
http://plugins.trac.wordpress.org/browser/groundhogg/tags/3.7.3.5/includes/big-file-uploader.php#L117
http://plugins.trac.wordpress.org/changeset/3221208/
http://wordpress.org/plugins/groundhogg/#developers
http://www.wordfence.com/threat-intel/vulnerabilities/id/b2cf3b85-2e2d-43dc-9877-9a740d4fd2fb?source=cve

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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.