Cross-site scripting (XSS) vulnerability in the Collne Welcart e-Commerce plugin before 1.8.3 for WordPress allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, a different vulnerability than CVE-2016-4827.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2016-5808
http://www.welcart.com/community/archives/78977