Unauthenticated Sensitive Data Exposure in WooCommerce PDF Invoices, Packing Slips, Delivery Notes and Shipping Labels <= 4.9.4 versions.

The WooCommerce PDF Invoices, Packing Slips, Delivery Notes and Shipping Labels plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the wtpklistresetsettings() function in all versions up to, and including, 4.4.2. This makes it possible for unauthenticated attackers to reset all of the plugin's settings.

The WooCommerce PDF Invoices, Packing Slips, Delivery Notes and Shipping Labels plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Customer Notes field in all versions up to, and including, 4.4.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected invoice for printing.