CVE-2011-5082
Cross-site scripting (XSS) vulnerability in the s2Member Pro plugin before 111220 for WordPress allows remote attackers to inject arbitrary web script or HTML via the s2member_pro_authnet_checkout[coupon] parameter (aka Coupon Code field).
Date published : 2012-03-19
http://www.securityfocus.com/bid/51997
http://www.primothemes.com/forums/viewtopic.php?f=4&t=16173#p56982