WPC Badge Management for WooCommerce <= 3.1.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'text' Attribute

The WPC Badge Management for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'text' attribute of the wpcbm_best_seller shortcode in all versions up to, and including, 3.1.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.