diff --git a/adm/shop_admin/categoryformupdate.php b/adm/shop_admin/categoryformupdate.php
index 7409eb9d4..ce5c8ed87 100644
--- a/adm/shop_admin/categoryformupdate.php
+++ b/adm/shop_admin/categoryformupdate.php
@@ -123,7 +123,7 @@ if ($w == "" || $w == "u")
         $sql = " select mb_id from {$g5['member_table']} where mb_id = '$ca_mb_id' ";
         $row = sql_fetch($sql);
         if (!$row['mb_id'])
-            alert("\'$ca_mb_id\' 은(는) 존재하는 회원아이디가 아닙니다.");
+            alert("'$ca_mb_id' 은(는) 존재하는 회원아이디가 아닙니다.");
     }
 }
 
@@ -256,4 +256,4 @@ if ($w == "" || $w == "u")
     goto_url("./categoryform.php?w=u&ca_id=$ca_id&$qstr");
 } else {
     goto_url("./categorylist.php?$qstr");
-}
\ No newline at end of file
+}
diff --git a/adm/shop_admin/categorylistupdate.php b/adm/shop_admin/categorylistupdate.php
index 2be067b59..921198e67 100644
--- a/adm/shop_admin/categorylistupdate.php
+++ b/adm/shop_admin/categorylistupdate.php
@@ -19,7 +19,7 @@ for ($i=0; $i<$post_ca_id_count; $i++)
         $sql = " select mb_id from {$g5['member_table']} where mb_id = '".sql_real_escape_string($str_ca_mb_id)."' ";
         $row = sql_fetch($sql);
         if (!$row['mb_id'])
-            alert("\'{$str_ca_mb_id}\' 은(는) 존재하는 회원아이디가 아닙니다.", "./categorylist.php?$qstr");
+            alert("'{$str_ca_mb_id}' 은(는) 존재하는 회원아이디가 아닙니다.", "./categorylist.php?$qstr");
     }
     
     $check_files =  array();
@@ -94,4 +94,4 @@ for ($i=0; $i<$post_ca_id_count; $i++)
 
 }
 
-goto_url("./categorylist.php?$qstr");
\ No newline at end of file
+goto_url("./categorylist.php?$qstr");
diff --git a/adm/shop_admin/inorderformupdate.php b/adm/shop_admin/inorderformupdate.php
index 005aae2cc..46d745c49 100644
--- a/adm/shop_admin/inorderformupdate.php
+++ b/adm/shop_admin/inorderformupdate.php
@@ -384,10 +384,16 @@ sql_query($sql);
 $sql = " delete from {$g5['g5_shop_order_data_table']} where od_id = '$od_id' and dt_pg = '$od_pg' ";
 sql_query($sql, true);
 
+$orderform_url = './orderform.php?od_id='.$od_id;
+$inorderlist_url = './inorderlist.php?'.str_replace('&amp;', '&', $qstr);
+$js_replace = array('\\' => '\\\\', '"' => '\\"', "'" => '\\u0027', '/' => '\\/', "\r" => '\\r', "\n" => '\\n', "\t" => '\\t', '<' => '\\u003C', '>' => '\\u003E', '&' => '\\u0026', "\xE2\x80\xA8" => '\\u2028', "\xE2\x80\xA9" => '\\u2029');
+$js_orderform_url = function_exists('get_js_safe_string') ? get_js_safe_string($orderform_url) : '"'.strtr((string)$orderform_url, $js_replace).'"';
+$js_inorderlist_url = function_exists('get_js_safe_string') ? get_js_safe_string($inorderlist_url) : '"'.strtr((string)$inorderlist_url, $js_replace).'"';
+
 echo '<meta http-equiv="content-type" content="text/html; charset=utf-8">'.PHP_EOL;
 echo '<script>'.PHP_EOL;
 echo 'if(confirm("복구하신 주문 상세페이지로 이동하시겠습니까?"))'.PHP_EOL;
-echo 'document.location.href = "./orderform.php?od_id='.$od_id.'";'.PHP_EOL;
+echo 'document.location.href = '.$js_orderform_url.';'.PHP_EOL;
 echo 'else'.PHP_EOL;
-echo 'document.location.href = "./inorderlist.php?'.str_replace('&amp;', '&', $qstr).'";'.PHP_EOL;
-echo '</script>'.PHP_EOL;
\ No newline at end of file
+echo 'document.location.href = '.$js_inorderlist_url.';'.PHP_EOL;
+echo '</script>'.PHP_EOL;
diff --git a/adm/shop_admin/itemform.php b/adm/shop_admin/itemform.php
index 0961a2d0c..5ca6dd9bc 100644
--- a/adm/shop_admin/itemform.php
+++ b/adm/shop_admin/itemform.php
@@ -105,7 +105,7 @@ else if ($w == "u")
                     and b.ca_mb_id = '{$member['mb_id']}' ";
         $row = sql_fetch($sql);
         if (!$row['it_id'])
-            alert("\'{$member['mb_id']}\' 님께서 수정 할 권한이 없는 상품입니다.");
+            alert("'{$member['mb_id']}' 님께서 수정 할 권한이 없는 상품입니다.");
     }
 
     $it = get_shop_item($it_id);
@@ -1901,4 +1901,4 @@ categorychange(document.fitemform);
 </script>
 
 <?php
-include_once (G5_ADMIN_PATH.'/admin.tail.php');
\ No newline at end of file
+include_once (G5_ADMIN_PATH.'/admin.tail.php');
diff --git a/adm/shop_admin/itemformupdate.php b/adm/shop_admin/itemformupdate.php
index 1d9173cdb..0fa8cf20f 100644
--- a/adm/shop_admin/itemformupdate.php
+++ b/adm/shop_admin/itemformupdate.php
@@ -513,7 +513,7 @@ else if ($w == "d")
                     and b.ca_mb_id = '{$member['mb_id']}' ";
         $row = sql_fetch($sql);
         if (!$row['it_id'])
-            alert("\'{$member['mb_id']}\' 님께서 삭제 할 권한이 없는 상품입니다.");
+            alert("'{$member['mb_id']}' 님께서 삭제 할 권한이 없는 상품입니다.");
     }
 
     itemdelete($it_id);
diff --git a/bbs/alert.php b/bbs/alert.php
index a79324e16..6146ac214 100644
--- a/bbs/alert.php
+++ b/bbs/alert.php
@@ -40,6 +40,10 @@ $url = preg_replace('/\r\n|\r|\n|[^\x20-\x7e]/','', $url);
 
 // url 체크
 check_url_host($url, $msg);
+$alert_url = str_replace('&amp;', '&', $url);
+$js_replace = array('\\' => '\\\\', '"' => '\\"', "'" => '\\u0027', '/' => '\\/', "\r" => '\\r', "\n" => '\\n', "\t" => '\\t', '<' => '\\u003C', '>' => '\\u003E', '&' => '\\u0026', "\xE2\x80\xA8" => '\\u2028', "\xE2\x80\xA9" => '\\u2029');
+$js_alert_msg = function_exists('get_js_safe_string') ? get_js_safe_string($alert_msg) : '"'.strtr((string)$alert_msg, $js_replace).'"';
+$js_alert_url = function_exists('get_js_safe_string') ? get_js_safe_string($alert_url) : '"'.strtr((string)$alert_url, $js_replace).'"';
 
 if($error) {
     $header2 = "다음 항목에 오류가 있습니다.";
@@ -49,9 +53,9 @@ if($error) {
 ?>
 
 <script>
-alert(<?php echo function_exists('get_js_safe_string') ? get_js_safe_string($alert_msg) : '""'; ?>);
+alert(<?php echo $js_alert_msg; ?>);
 <?php if ($url) { ?>
-document.location.replace("<?php echo str_replace('&amp;', '&', $url); ?>");
+document.location.replace(<?php echo $js_alert_url; ?>);
 <?php } else { ?>
 history.back();
 <?php } ?>
@@ -114,4 +118,4 @@ history.back();
 </noscript>
 
 <?php
-include_once(G5_PATH.'/tail.sub.php');
\ No newline at end of file
+include_once(G5_PATH.'/tail.sub.php');
diff --git a/bbs/alert_close.php b/bbs/alert_close.php
index 383da822e..e55eec5f5 100644
--- a/bbs/alert_close.php
+++ b/bbs/alert_close.php
@@ -6,6 +6,8 @@ $msg = isset($msg) ? strip_tags($msg) : '';
 
 $msg2 = str_replace(array("\\r\\n", "\\n", "\\r"), "<br>", $msg);
 $alert_msg = str_replace(array("\\r\\n", "\\n", "\\r"), "\n", $msg);
+$js_replace = array('\\' => '\\\\', '"' => '\\"', "'" => '\\u0027', '/' => '\\/', "\r" => '\\r', "\n" => '\\n', "\t" => '\\t', '<' => '\\u003C', '>' => '\\u003E', '&' => '\\u0026', "\xE2\x80\xA8" => '\\u2028', "\xE2\x80\xA9" => '\\u2029');
+$js_alert_msg = function_exists('get_js_safe_string') ? get_js_safe_string($alert_msg) : '"'.strtr((string)$alert_msg, $js_replace).'"';
 
 if($error) {
     $header2 = "다음 항목에 오류가 있습니다.";
@@ -17,7 +19,7 @@ if($error) {
 ?>
 
 <script>
-alert(<?php echo function_exists('get_js_safe_string') ? get_js_safe_string($alert_msg) : '""'; ?>);
+alert(<?php echo $js_alert_msg; ?>);
 try {
     window.close();
 } catch(error) {
diff --git a/bbs/board_list_update.php b/bbs/board_list_update.php
index 77b0014d4..79f80e8b0 100644
--- a/bbs/board_list_update.php
+++ b/bbs/board_list_update.php
@@ -7,7 +7,7 @@ $count = (isset($_POST['chk_wr_id']) && is_array($_POST['chk_wr_id'])) ? count($
 $post_btn_submit = isset($_POST['btn_submit']) ? clean_xss_tags($_POST['btn_submit'], 1, 1) : '';
 
 if(!$count) {
-    alert(addcslashes($post_btn_submit, '"\\/').' 하실 항목을 하나 이상 선택하세요.');
+    alert($post_btn_submit.' 하실 항목을 하나 이상 선택하세요.');
 }
 
 if($post_btn_submit === '선택삭제') {
@@ -20,4 +20,4 @@ if($post_btn_submit === '선택삭제') {
     include './move.php';
 } else {
     alert('올바른 방법으로 이용해 주세요.');
-}
\ No newline at end of file
+}
diff --git a/bbs/confirm.php b/bbs/confirm.php
index ffdc3f738..cd0969f52 100644
--- a/bbs/confirm.php
+++ b/bbs/confirm.php
@@ -14,6 +14,12 @@ $url3 = preg_replace($pattern2, "", $url3);
 
 $msg = isset($msg) ? $msg : '';
 $header = isset($header) ? $msg : '';
+$confirm_msg = str_replace(array('<br>', '<br/>', '<br />'), "\n", $msg);
+$confirm_msg = strip_tags($confirm_msg);
+$js_replace = array('\\' => '\\\\', '"' => '\\"', "'" => '\\u0027', '/' => '\\/', "\r" => '\\r', "\n" => '\\n', "\t" => '\\t', '<' => '\\u003C', '>' => '\\u003E', '&' => '\\u0026', "\xE2\x80\xA8" => '\\u2028', "\xE2\x80\xA9" => '\\u2029');
+$js_confirm_msg = function_exists('get_js_safe_string') ? get_js_safe_string($confirm_msg) : '"'.strtr((string)$confirm_msg, $js_replace).'"';
+$js_url1 = function_exists('get_js_safe_string') ? get_js_safe_string($url1) : '"'.strtr((string)$url1, $js_replace).'"';
+$js_url2 = function_exists('get_js_safe_string') ? get_js_safe_string($url2) : '"'.strtr((string)$url2, $js_replace).'"';
 
 // url 체크
 check_url_host($url1);
@@ -22,11 +28,11 @@ check_url_host($url3);
 ?>
 
 <script>
-var conf = "<?php echo strip_tags($msg); ?>";
+var conf = <?php echo $js_confirm_msg; ?>;
 if (confirm(conf)) {
-    document.location.replace("<?php echo $url1; ?>");
+    document.location.replace(<?php echo $js_url1; ?>);
 } else {
-    document.location.replace("<?php echo $url2; ?>");
+    document.location.replace(<?php echo $js_url2; ?>);
 }
 </script>
 
@@ -49,4 +55,4 @@ if (confirm(conf)) {
 </noscript>
 
 <?php
-include_once(G5_PATH.'/tail.sub.php');
\ No newline at end of file
+include_once(G5_PATH.'/tail.sub.php');
diff --git a/bbs/formmail.php b/bbs/formmail.php
index d7f434c25..071b1677c 100644
--- a/bbs/formmail.php
+++ b/bbs/formmail.php
@@ -3,7 +3,7 @@ include_once('./_common.php');
 include_once(G5_CAPTCHA_PATH.'/captcha.lib.php');
 
 if (!$config['cf_email_use'])
-    alert_close('환경설정에서 \"메일발송 사용\"에 체크하셔야 메일을 발송할 수 있습니다.\\n\\n관리자에게 문의하시기 바랍니다.');
+    alert_close('환경설정에서 "메일발송 사용"에 체크하셔야 메일을 발송할 수 있습니다.\\n\\n관리자에게 문의하시기 바랍니다.');
 
 if (!$is_member && $config['cf_formmail_is_member'])
     alert_close('회원만 이용하실 수 있습니다.');
@@ -52,4 +52,4 @@ $type_checked[$type] = 'checked';
 
 include_once($member_skin_path.'/formmail.skin.php');
 
-include_once(G5_PATH.'/tail.sub.php');
\ No newline at end of file
+include_once(G5_PATH.'/tail.sub.php');
diff --git a/bbs/poll_update.php b/bbs/poll_update.php
index 0d7ebe39a..bd2248aba 100644
--- a/bbs/poll_update.php
+++ b/bbs/poll_update.php
@@ -38,10 +38,10 @@ if ($is_member) {
 sql_query($sql);
 
 if (get_sql_affected_rows() <= 0) {
-    alert(addcslashes($po['po_subject'], '"\\/').'에 이미 참여하셨습니다.', $result_url);
+    alert($po['po_subject'].'에 이미 참여하셨습니다.', $result_url);
 }
 
 insert_point($member['mb_id'], $po['po_point'], $po['po_id'] . '. ' . cut_str($po['po_subject'],20) . ' 투표 참여 ', '@poll', $po['po_id'], '투표');
 
 //goto_url($g5['bbs_url'].'/poll_result.php?po_id='.$po_id.'&amp;skin_dir='.$skin_dir);
-goto_url($result_url);
\ No newline at end of file
+goto_url($result_url);
diff --git a/bbs/qawrite_update.php b/bbs/qawrite_update.php
index 46756bae3..5f931c337 100644
--- a/bbs/qawrite_update.php
+++ b/bbs/qawrite_update.php
@@ -174,11 +174,11 @@ for ($i=1; $i<=$upload_count; $i++) {
     // 서버에 설정된 값보다 큰파일을 업로드 한다면
     if ($filename) {
         if ($_FILES['bf_file']['error'][$i] == 1) {
-            $file_upload_msg .= '\"'.$filename.'\" 파일의 용량이 서버에 설정('.$upload_max_filesize.')된 값보다 크므로 업로드 할 수 없습니다.\\n';
+            $file_upload_msg .= '"'.$filename.'" 파일의 용량이 서버에 설정('.$upload_max_filesize.')된 값보다 크므로 업로드 할 수 없습니다.\\n';
             continue;
         }
         else if ($_FILES['bf_file']['error'][$i] != 0) {
-            $file_upload_msg .= '\"'.$filename.'\" 파일이 정상적으로 업로드 되지 않았습니다.\\n';
+            $file_upload_msg .= '"'.$filename.'" 파일이 정상적으로 업로드 되지 않았습니다.\\n';
             continue;
         }
     }
@@ -186,7 +186,7 @@ for ($i=1; $i<=$upload_count; $i++) {
     if (is_uploaded_file($tmp_file)) {
         // 관리자가 아니면서 설정한 업로드 사이즈보다 크다면 건너뜀
         if (!$is_admin && $filesize > $qaconfig['qa_upload_size']) {
-            $file_upload_msg .= '\"'.$filename.'\" 파일의 용량('.number_format($filesize).' 바이트)이 게시판에 설정('.number_format($qaconfig['qa_upload_size']).' 바이트)된 값보다 크므로 업로드 하지 않습니다.\\n';
+            $file_upload_msg .= '"'.$filename.'" 파일의 용량('.number_format($filesize).' 바이트)이 게시판에 설정('.number_format($qaconfig['qa_upload_size']).' 바이트)된 값보다 크므로 업로드 하지 않습니다.\\n';
             continue;
         }
 
@@ -482,4 +482,4 @@ else
 if ($file_upload_msg)
     alert($file_upload_msg, $result_url);
 else
-    goto_url($result_url);
\ No newline at end of file
+    goto_url($result_url);
diff --git a/bbs/register_form_update.php b/bbs/register_form_update.php
index d4c32d257..3185eeaa0 100644
--- a/bbs/register_form_update.php
+++ b/bbs/register_form_update.php
@@ -678,8 +678,11 @@ if(isset($_SESSION['ss_cert_hash'])) unset($_SESSION['ss_cert_hash']);
 if(isset($_SESSION['ss_cert_birth'])) unset($_SESSION['ss_cert_birth']);
 if(isset($_SESSION['ss_cert_adult'])) unset($_SESSION['ss_cert_adult']);
 
-if ($msg)
-    echo '<script>alert(\''.$msg.'\');</script>';
+if ($msg) {
+    $js_replace = array('\\' => '\\\\', '"' => '\\"', "'" => '\\u0027', '/' => '\\/', "\r" => '\\r', "\n" => '\\n', "\t" => '\\t', '<' => '\\u003C', '>' => '\\u003E', '&' => '\\u0026', "\xE2\x80\xA8" => '\\u2028', "\xE2\x80\xA9" => '\\u2029');
+    $js_msg = function_exists('get_js_safe_string') ? get_js_safe_string($msg) : '"'.strtr((string)$msg, $js_replace).'"';
+    echo '<script>alert('.$js_msg.');</script>';
+}
 
 run_event('register_form_update_after', $mb_id, $w);
 
diff --git a/bbs/scrap_popin_update.php b/bbs/scrap_popin_update.php
index 86d25137a..4177b528a 100644
--- a/bbs/scrap_popin_update.php
+++ b/bbs/scrap_popin_update.php
@@ -6,7 +6,10 @@ include_once(G5_PATH.'/head.sub.php');
 if (!$is_member)
 {
     $href = './login.php?'.$qstr.'&amp;url='.urlencode(get_pretty_url($bo_table, $wr_id));
-    echo '<script> alert(\'회원만 접근 가능합니다.\'); top.location.href = \''.str_replace('&amp;', '&', $href).'\'; </script>';
+    $href = str_replace('&amp;', '&', $href);
+    $js_replace = array('\\' => '\\\\', '"' => '\\"', "'" => '\\u0027', '/' => '\\/', "\r" => '\\r', "\n" => '\\n', "\t" => '\\t', '<' => '\\u003C', '>' => '\\u003E', '&' => '\\u0026', "\xE2\x80\xA8" => '\\u2028', "\xE2\x80\xA9" => '\\u2029');
+    $js_href = function_exists('get_js_safe_string') ? get_js_safe_string($href) : '"'.strtr((string)$href, $js_replace).'"';
+    echo '<script> alert(\'회원만 접근 가능합니다.\'); top.location.href = '.$js_href.'; </script>';
     exit;
 }
 
@@ -115,4 +118,4 @@ delete_cache_latest($bo_table);
 <noscript>
 <p>이 글을 스크랩 하였습니다.</p>
 <a href="./scrap.php">스크랩 확인하기</a>
-</noscript>
\ No newline at end of file
+</noscript>
diff --git a/bbs/write_update.php b/bbs/write_update.php
index 875a253b5..be65214be 100644
--- a/bbs/write_update.php
+++ b/bbs/write_update.php
@@ -528,11 +528,11 @@ if(isset($_FILES['bf_file']['name']) && is_array($_FILES['bf_file']['name'])) {
         // 서버에 설정된 값보다 큰파일을 업로드 한다면
         if ($filename) {
             if ($_FILES['bf_file']['error'][$i] == 1) {
-                $file_upload_msg .= '\"'.$filename.'\" 파일의 용량이 서버에 설정('.$upload_max_filesize.')된 값보다 크므로 업로드 할 수 없습니다.\\n';
+                $file_upload_msg .= '"'.$filename.'" 파일의 용량이 서버에 설정('.$upload_max_filesize.')된 값보다 크므로 업로드 할 수 없습니다.\\n';
                 continue;
             }
             else if ($_FILES['bf_file']['error'][$i] != 0) {
-                $file_upload_msg .= '\"'.$filename.'\" 파일이 정상적으로 업로드 되지 않았습니다.\\n';
+                $file_upload_msg .= '"'.$filename.'" 파일이 정상적으로 업로드 되지 않았습니다.\\n';
                 continue;
             }
         }
@@ -540,7 +540,7 @@ if(isset($_FILES['bf_file']['name']) && is_array($_FILES['bf_file']['name'])) {
         if (is_uploaded_file($tmp_file)) {
             // 관리자가 아니면서 설정한 업로드 사이즈보다 크다면 건너뜀
             if (!$is_admin && $filesize > $board['bo_upload_size']) {
-                $file_upload_msg .= '\"'.$filename.'\" 파일의 용량('.number_format($filesize).' 바이트)이 게시판에 설정('.number_format($board['bo_upload_size']).' 바이트)된 값보다 크므로 업로드 하지 않습니다.\\n';
+                $file_upload_msg .= '"'.$filename.'" 파일의 용량('.number_format($filesize).' 바이트)이 게시판에 설정('.number_format($board['bo_upload_size']).' 바이트)된 값보다 크므로 업로드 하지 않습니다.\\n';
                 continue;
             }
 
diff --git a/lib/common.lib.php b/lib/common.lib.php
index a3fe37859..a59eaa56f 100644
--- a/lib/common.lib.php
+++ b/lib/common.lib.php
@@ -112,11 +112,14 @@ function goto_url($url)
     if (!headers_sent())
         header('Location: '.$url);
     else {
+        $js_replace = array('\\' => '\\\\', '"' => '\\"', "'" => '\\u0027', '/' => '\\/', "\r" => '\\r', "\n" => '\\n', "\t" => '\\t', '<' => '\\u003C', '>' => '\\u003E', '&' => '\\u0026', "\xE2\x80\xA8" => '\\u2028', "\xE2\x80\xA9" => '\\u2029');
+        $js_url = function_exists('get_js_safe_string') ? get_js_safe_string($url) : '"'.strtr((string)$url, $js_replace).'"';
+        $html_url = htmlspecialchars($url, ENT_QUOTES);
         echo '<script>';
-        echo 'location.replace("'.$url.'");';
+        echo 'location.replace('.$js_url.');';
         echo '</script>';
         echo '<noscript>';
-        echo '<meta http-equiv="refresh" content="0;url='.$url.'" />';
+        echo '<meta http-equiv="refresh" content="0;url='.$html_url.'" />';
         echo '</noscript>';
     }
     exit;
@@ -3740,7 +3743,9 @@ function module_exec_check($exe, $type)
     }
 
     if($error) {
-        $error = '<script>alert("'.$error.'");</script>';
+        $js_replace = array('\\' => '\\\\', '"' => '\\"', "'" => '\\u0027', '/' => '\\/', "\r" => '\\r', "\n" => '\\n', "\t" => '\\t', '<' => '\\u003C', '>' => '\\u003E', '&' => '\\u0026', "\xE2\x80\xA8" => '\\u2028', "\xE2\x80\xA9" => '\\u2029');
+        $js_error = function_exists('get_js_safe_string') ? get_js_safe_string($error) : '"'.strtr((string)$error, $js_replace).'"';
+        $error = '<script>alert('.$js_error.');</script>';
     }
 
     return $error;
@@ -4165,13 +4170,16 @@ function check_url_host($url, $msg='', $return_url=G5_URL, $is_redirect=false)
     if ((isset($p['scheme']) && $p['scheme']) || (isset($p['host']) && $p['host']) || $is_host_check) {
         //if ($p['host'].(isset($p['port']) ? ':'.$p['port'] : '') != $_SERVER['HTTP_HOST']) {
         if (run_replace('check_same_url_host', (($p['host'] != $host) || $is_host_check), $p, $host, $is_host_check, $return_url, $is_redirect)) {
+            $js_replace = array('\\' => '\\\\', '"' => '\\"', "'" => '\\u0027', '/' => '\\/', "\r" => '\\r', "\n" => '\\n', "\t" => '\\t', '<' => '\\u003C', '>' => '\\u003E', '&' => '\\u0026', "\xE2\x80\xA8" => '\\u2028', "\xE2\x80\xA9" => '\\u2029');
+            $js_return_url = function_exists('get_js_safe_string') ? get_js_safe_string($return_url) : '"'.strtr((string)$return_url, $js_replace).'"';
+            $html_return_url = htmlspecialchars($return_url, ENT_QUOTES);
             echo '<script>'.PHP_EOL;
             echo 'alert("url에 타 도메인을 지정할 수 없습니다.");'.PHP_EOL;
-            echo 'document.location.href = "'.$return_url.'";'.PHP_EOL;
+            echo 'document.location.href = '.$js_return_url.';'.PHP_EOL;
             echo '</script>'.PHP_EOL;
             echo '<noscript>'.PHP_EOL;
             echo '<p>'.$msg.'</p>'.PHP_EOL;
-            echo '<p><a href="'.$return_url.'">돌아가기</a></p>'.PHP_EOL;
+            echo '<p><a href="'.$html_return_url.'">돌아가기</a></p>'.PHP_EOL;
             echo '</noscript>'.PHP_EOL;
             exit;
         }
diff --git a/lib/shop.lib.php b/lib/shop.lib.php
index 7a4b3258a..8ad6a79e4 100644
--- a/lib/shop.lib.php
+++ b/lib/shop.lib.php
@@ -1405,11 +1405,15 @@ function alert_opener($msg='', $url='')
     global $g5;
 
     if (!$msg) $msg = '올바른 방법으로 이용해 주십시오.';
+    $msg = strip_tags($msg);
+    $js_replace = array('\\' => '\\\\', '"' => '\\"', "'" => '\\u0027', '/' => '\\/', "\r" => '\\r', "\n" => '\\n', "\t" => '\\t', '<' => '\\u003C', '>' => '\\u003E', '&' => '\\u0026', "\xE2\x80\xA8" => '\\u2028', "\xE2\x80\xA9" => '\\u2029');
+    $js_msg = function_exists('get_js_safe_string') ? get_js_safe_string($msg) : '"'.strtr((string)$msg, $js_replace).'"';
+    $js_url = function_exists('get_js_safe_string') ? get_js_safe_string($url) : '"'.strtr((string)$url, $js_replace).'"';
 
     echo "<meta http-equiv=\"content-type\" content=\"text/html; charset=utf-8\">";
     echo "<script>";
-    echo "alert(\"$msg\");";
-    echo "opener.location.href=\"$url\";";
+    echo "alert(".$js_msg.");";
+    echo "opener.location.href=".$js_url.";";
     echo "self.close();";
     echo "</script>";
     exit;
@@ -2976,4 +2980,4 @@ function is_coupon_downloaded($mb_id, $cz_id)
 
 //==============================================================================
 // 쇼핑몰 라이브러리 모음 끝
-//==============================================================================;
\ No newline at end of file
+//==============================================================================;
diff --git a/plugin/kcpcert_v2/kcpcert_result.php b/plugin/kcpcert_v2/kcpcert_result.php
index 49b0545dd..ecb3a180c 100644
--- a/plugin/kcpcert_v2/kcpcert_result.php
+++ b/plugin/kcpcert_v2/kcpcert_result.php
@@ -81,16 +81,22 @@ set_session('ss_cert_adult',   $adult);
 set_session('ss_cert_birth',   $birth_day);
 set_session('ss_cert_sex',     ($sex_code == '01' ? 'M' : 'F'));
 set_session('ss_cert_dupinfo', $mb_dupinfo);
+
+$js_replace = array('\\' => '\\\\', '"' => '\\"', "'" => '\\u0027', '/' => '\\/', "\r" => '\\r', "\n" => '\\n', "\t" => '\\t', '<' => '\\u003C', '>' => '\\u003E', '&' => '\\u0026', "\xE2\x80\xA8" => '\\u2028', "\xE2\x80\xA9" => '\\u2029');
+$js_cert_type = function_exists('get_js_safe_string') ? get_js_safe_string($cert_type) : '"'.strtr((string)$cert_type, $js_replace).'"';
+$js_user_name = function_exists('get_js_safe_string') ? get_js_safe_string($user_name) : '"'.strtr((string)$user_name, $js_replace).'"';
+$js_phone_no = function_exists('get_js_safe_string') ? get_js_safe_string($phone_no) : '"'.strtr((string)$phone_no, $js_replace).'"';
+$js_md5_cert_no = function_exists('get_js_safe_string') ? get_js_safe_string($md5_cert_no) : '"'.strtr((string)$md5_cert_no, $js_replace).'"';
 ?>
 <script>
 jQuery(function($) {
     var $opener = window.opener;
     if (!$opener) { window.close(); return; }
 
-    $opener.$("input[name=cert_type]").val(<?php echo get_js_safe_string($cert_type); ?>);
-    $opener.$("input[name=mb_name]").val(<?php echo get_js_safe_string($user_name); ?>).attr("readonly", true);
-    $opener.$("input[name=mb_hp]").val(<?php echo get_js_safe_string($phone_no); ?>).attr("readonly", true);
-    $opener.$("input[name=cert_no]").val(<?php echo get_js_safe_string($md5_cert_no); ?>);
+    $opener.$("input[name=cert_type]").val(<?php echo $js_cert_type; ?>);
+    $opener.$("input[name=mb_name]").val(<?php echo $js_user_name; ?>).attr("readonly", true);
+    $opener.$("input[name=mb_hp]").val(<?php echo $js_phone_no; ?>).attr("readonly", true);
+    $opener.$("input[name=cert_no]").val(<?php echo $js_md5_cert_no; ?>);
 
     alert("본인의 휴대폰번호로 확인 되었습니다.");
 
diff --git a/plugin/okname/hpcert1.php b/plugin/okname/hpcert1.php
index d208ab5b8..b67346f3e 100644
--- a/plugin/okname/hpcert1.php
+++ b/plugin/okname/hpcert1.php
@@ -98,7 +98,9 @@ if ($retcode == "B000") {
     echo ("<script>request();</script>");
 } else {
     //요청 실패 페이지로 리턴
-    echo ("<script>alert(\"$retcode\"); self.close();</script>");
+    $js_replace = array('\\' => '\\\\', '"' => '\\"', "'" => '\\u0027', '/' => '\\/', "\r" => '\\r', "\n" => '\\n', "\t" => '\\t', '<' => '\\u003C', '>' => '\\u003E', '&' => '\\u0026', "\xE2\x80\xA8" => '\\u2028', "\xE2\x80\xA9" => '\\u2029');
+    $js_retcode = function_exists('get_js_safe_string') ? get_js_safe_string($retcode) : '"'.strtr((string)$retcode, $js_replace).'"';
+    echo ("<script>alert(".$js_retcode."); self.close();</script>");
 }
 
-include_once(G5_PATH.'/tail.sub.php');
\ No newline at end of file
+include_once(G5_PATH.'/tail.sub.php');