What’s Vulnerable › Vulnerabilities

CVE-2025-0394: Groundhogg <= 3.7.3.5 - Authenticated (Author+) Arbitrary File Upload via gh_big_file_upload Function

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-01-14 · updated 2026-06-17
• Weakness: CWE-434

Description

The WordPress CRM, Email & Marketing Automation for WordPress | Award Winner — Groundhogg plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the gh_big_file_upload() function in all versions up to, and including, 3.7.3.5. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

Affected products

• trainingbusinesspros Groundhogg — CRM, Newsletters, and Marketing Automation: through 3.7.3.5

References

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

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