The plugin does not sanitize and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting (XSS) attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

Proof of Concept

Put the following payload in the Name field of WooCommerce > Settings > DPD > Warehouses:


Fill the other fields with dummy data and save.