Path Traversal vulnerability in SMSA Express SMSA Shipping allows Path Traversal.This issue affects SMSA Shipping: from n/a through 2.3.

The SMSA Shipping(official) plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the smsa_delete_label() function in all versions up to, and including, 2.2. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php).

The SMSA Shipping for WooCommerce WordPress plugin before 1.0.5 does not have authorisation and proper CSRF checks, as well as does not validate the file to be downloaded, allowing any authenticated users, such as subscriber to download arbitrary file from the server