KVE-2019-0567, 0657 XSS 취약점 수정

mobile/shop/event.php

@@ -1,6 +1,8 @@
 <?php
 include_once('./_common.php');
 
+$ev_id = (int) $ev_id;
+
 $sql = " select * from {$g5['g5_shop_event_table']}
           where ev_id = '$ev_id'
             and ev_use = 1 ";