What the vulnerability does
01Description
The Hustle – Email Marketing, Lead Generation, Optins, Popups plugin for WordPress is vulnerable to arbitrary file uploads due to incorrect file type validation in the action_import_module() function in all versions up to, and including, 7.8.9.2. This makes it possible for authenticated attackers, with a lower-privileged role (e.g., Subscriber-level access and above), to upload arbitrary files on the affected site's server which may make remote code execution possible. Successful exploitation requires an admin to grant Hustle module permissions (or module edit access) to the low-privileged user so they can access the Hustle admin page and obtain the required nonce.
Explanation of Vulnerability in Simple Terms
02Summary
Hustle allows authenticated users to upload files without proper validation, potentially enabling them to upload malicious files to the site. An attacker with low-level access can bypass file type restrictions and upload executable code. This vulnerability affects versions up to 7.8.9.2. Site administrators should update to a version newer than 7.8.9.2 immediately.
What an attacker can do
03Attacker Capabilities
Upload malicious files (including executable code) to the site without proper validation.
Potential impact on your site
04Site Impact
Attackers with basic site access can upload and execute malicious code, potentially compromising your entire site.
Conditions required to exploit
05Prerequisites
Attacker must have a low-level user account (subscriber or contributor level) on the site.
Key dates
06Disclosure timeline
January 24, 2026
CVE published
April 8, 2026
Record updated
