The Order Attachments for WooCommerce plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.5.1 via the 'uploads' directory. This makes it possible for unauthenticated attackers to extract sensitive data stored insecurely in the /wp-content/uploads directory which can contain file attachments added to orders.

The Order Attachments for WooCommerce plugin for WordPress is vulnerable to unauthorized limited arbitrary file uploads due to a missing capability check on the wcoa_add_attachment AJAX action in versions 2.0 to 2.4.1. This makes it possible for authenticated attackers, with subscriber-level access and above, to upload limited file types.