Booster for WooCommerce <= 7.2.4 - Unauthenticated Double Extension Arbitrary File Upload

The Booster for WooCommerce plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'add_files_to_order' function in all versions up to, and including, 7.2.4. This makes it possible for unauthenticated attackers to upload arbitrary files with double extensions on the affected site's server which may make remote code execution possible. This is only exploitable on select instances where the configuration will execute the first extension present.

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. Classes like this one can leave something behind, so the staged malware scanner is the second half: it looks for dropped files and modified code rather than for the request that created them. None of that substitutes for the fix: Booster for WooCommerce 7.2.5 closes this, and updating the plugin is the step that ends it.

• Firewall
• Scanner
• Login Security