diff --git a/AvocadoEdition_Light/adm/admin.lib.php b/AvocadoEdition_Light/adm/admin.lib.php
index 0fc36b8..9de1f58 100644
--- a/AvocadoEdition_Light/adm/admin.lib.php
+++ b/AvocadoEdition_Light/adm/admin.lib.php
@@ -432,7 +432,7 @@ function admin_check_xss_params($params)
 
     if (is_array($value)) {
       admin_check_xss_params($value);
-    } else if (preg_match('/<\s?[^\>]*\/?\s?>/i', $value) && (preg_match('/script.*?\/script/ius', $value) || preg_match('/[onload|onerror]=.*/ius', $value))) {
+    } else if (preg_match('/<\s?[^\>]*\/?\s?>/i', $value) && (preg_match('/script.*?\/script/ius', $value) || preg_match('/(onload|onerror)=.*/ius', $value))) {
       alert('요청 쿼리에 잘못된 스크립트문장이 있습니다.\\nXSS 공격일수도 있습니다.');
       die();
     }