ZenCart MailBeez plugin cross-site scripting vulnerability

MailBeez plugin for ZenCart is a Danish MailBeez company's post-sale e-mail auto-trigger plugin for use in ZenCart e-commerce system. A cross-site scripting vulnerability exists in the mailhive/cloudbeez/cloudloader.php file and the mailhive/cloudbeez/cloudloadercore.php file in MailBeez versions...