Forminator Forms – Contact Form, Payment Form & Custom Form Builder <= 1.44.2 - Unauthenticated Arbitrary File Deletion Triggered via Administrator Form Submission Deletion

Vulnerability Description

The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the 'entry_delete_upload_files' function in all versions up to, and including, 1.44.2. This makes it possible for unauthenticated attackers to include arbitrary file paths in a form submission. The file will be deleted when the form submission is deleted, whether by an Administrator or via auto-deletion determined by plugin settings. This can easily lead to remote code execution when the right file is deleted (such as wp-config.php).

References

• https://www.wordfence.com/threat-intel/vulnerabilities/id/6dc9b4cb-d36b-4693-a7b9-1dad123b6639?source=cve
• https://plugins.trac.wordpress.org/browser/forminator/trunk/library/model/class-form-entry-model.php#L1249
• https://plugins.trac.wordpress.org/changeset/3319860/forminator#file3