The CTT Expresso para WooCommerce WordPress plugin before 3.2.13 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)
The CTT Expresso para WooCommerce plugin for WordPress is vulnerable to sensitive information exposure in all versions up to and including 3.2.12 via the /wp-content/uploads/cepw directory. The generated .pdf and log files are publicly accessible and contain sensitive information such as sender and receiver names, phone numbers, physical addresses, and email addresses