Multiple SQL injection vulnerabilities in admin.php in the Collne Welcart plugin before 1.5.3 for WordPress allow remote authenticated users to execute arbitrary SQL commands via the (1) search[column] or (2) switch parameter.
https://wpvulndb.com/vulnerabilities/8356
http://www.welcart.com/community/archives/76035
http://www.securityfocus.com/bid/79647