ZenCart CKEditor cross site scripting

A vulnerability was detected in ZenCart 2.1.0. Affected by this vulnerability is an unknown functionality of the component CKEditor. The manipulation leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The vendor declares this as "intended behavior, allowed for authorized administrators".