Multiple SQL injection vulnerabilities in admin/login_submit.php in Whole Hog Password Protect: Enhanced 1.x allow remote attackers to execute arbitrary SQL commands via (1) the uid parameter (aka Username field) or (2) the pwd parameter (aka Password field). NOTE: some of these details are obtained from third party information.
https://www.exploit-db.com/exploits/7941
http://www.securityfocus.com/bid/33564