Input validation vulnerability in MultiParcels Shipping For WooCommerce 1.15

The MultiParcels Shipping For WooCommerce plugin for WordPress is vulnerable to a security issue called Reflected Cross-Site Scripting. This vulnerability makes it possible for an attacker to inject malicious code into webpages, which can be executed if a user clicks on a link or performs some other action. Versions of the plugin up to and including 1.15 are affected due to inadequate input filtering and output escaping.