diff --git a/adm/contentformupdate.php b/adm/contentformupdate.php
index ac1be285d..1f55ce84e 100644
--- a/adm/contentformupdate.php
+++ b/adm/contentformupdate.php
@@ -14,13 +14,13 @@ check_admin_token();
 
 if ($w == "" || $w == "u")
 {
-    if(isset($_POST['co_id']) && preg_match("/[^a-z0-9_]/i", $_POST['co_id'])) alert("ID 는 영문자, 숫자, _ 만 가능합니다.");
+    if(isset($_REQUEST['co_id']) && preg_match("/[^a-z0-9_]/i", $_REQUEST['co_id'])) alert("ID 는 영문자, 숫자, _ 만 가능합니다.");
 
     $sql = " select * from {$g5['content_table']} where co_id = '$co_id' ";
     $co_row = sql_fetch($sql);
 }
 
-$co_id = isset($_POST['co_id']) ? preg_replace('/[^a-z0-9_]/i', '', $_POST['co_id']) : '';
+$co_id = isset($_REQUEST['co_id']) ? preg_replace('/[^a-z0-9_]/i', '', $_REQUEST['co_id']) : '';
 $co_subject = strip_tags(clean_xss_attributes($co_subject));
 $co_include_head = preg_replace(array("#[\\\]+$#", "#(<\?php|<\?)#i"), "", substr($co_include_head, 0, 255));
 $co_include_tail = preg_replace(array("#[\\\]+$#", "#(<\?php|<\?)#i"), "", substr($co_include_tail, 0, 255));
diff --git a/bbs/content.php b/bbs/content.php
index d0a20c332..b74670150 100644
--- a/bbs/content.php
+++ b/bbs/content.php
@@ -2,6 +2,7 @@
 include_once('./_common.php');
 
 $co_id = isset($_GET['co_id']) ? preg_replace('/[^a-z0-9_]/i', '', $_GET['co_id']) : 0;
+$co_seo_title = isset($_GET['co_seo_title']) ? clean_xss_tags($_GET['co_seo_title'], 1, 1) : '';
 
 //dbconfig파일에 $g5['content_table'] 배열변수가 있는지 체크
 if( !isset($g5['content_table']) ){
@@ -25,7 +26,7 @@ if (G5_IS_MOBILE) {
     return;
 }
 
-if (!$co['co_id'])
+if (! (isset($co['co_id']) && $co['co_id']))
     alert('등록된 내용이 없습니다.');
 
 $g5['title'] = $co['co_subject'];
@@ -45,29 +46,29 @@ $src[] = "/{{쇼핑몰명}}|{{홈페이지제목}}/";
 $dst[] = $config['cf_title'];
 if(isset($default) && isset($default['de_admin_company_name'])){
     $src[] = "/{{회사명}}|{{상호}}/";
-    $dst[] = $default['de_admin_company_name'];
+    $dst[] = isset($default['de_admin_company_name']) ? $default['de_admin_company_name'] : '';
     $src[] = "/{{대표자명}}/";
-    $dst[] = $default['de_admin_company_owner'];
+    $dst[] = isset($default['de_admin_company_owner']) ? $default['de_admin_company_owner'] : '';
     $src[] = "/{{사업자등록번호}}/";
-    $dst[] = $default['de_admin_company_saupja_no'];
+    $dst[] = isset($default['de_admin_company_saupja_no']) ? $default['de_admin_company_saupja_no'] : '';
     $src[] = "/{{대표전화번호}}/";
-    $dst[] = $default['de_admin_company_tel'];
+    $dst[] = isset($default['de_admin_company_tel']) ? $default['de_admin_company_tel'] : '';
     $src[] = "/{{팩스번호}}/";
-    $dst[] = $default['de_admin_company_fax'];
+    $dst[] = isset($default['de_admin_company_fax']) ? $default['de_admin_company_fax'] : '';
     $src[] = "/{{통신판매업신고번호}}/";
-    $dst[] = $default['de_admin_company_tongsin_no'];
+    $dst[] = isset($default['de_admin_company_tongsin_no']) ? $default['de_admin_company_tongsin_no'] : '';
     $src[] = "/{{사업장우편번호}}/";
-    $dst[] = $default['de_admin_company_zip'];
+    $dst[] = isset($default['de_admin_company_zip']) ? $default['de_admin_company_zip'] : '';
     $src[] = "/{{사업장주소}}/";
-    $dst[] = $default['de_admin_company_addr'];
+    $dst[] = isset($default['de_admin_company_addr']) ? $default['de_admin_company_addr'] : '';
     $src[] = "/{{운영자명}}|{{관리자명}}/";
-    $dst[] = $default['de_admin_name'];
+    $dst[] = isset($default['de_admin_name']) ? $default['de_admin_name'] : '';
     $src[] = "/{{운영자e-mail}}|{{관리자e-mail}}/i";
-    $dst[] = $default['de_admin_email'];
+    $dst[] = isset($default['de_admin_email']) ? $default['de_admin_email'] : '';
     $src[] = "/{{정보관리책임자명}}/";
-    $dst[] = $default['de_admin_info_name'];
+    $dst[] = isset($default['de_admin_info_name']) ? $default['de_admin_info_name'] : '';
     $src[] = "/{{정보관리책임자e-mail}}|{{정보책임자e-mail}}/i";
-    $dst[] = $default['de_admin_info_email'];
+    $dst[] = isset($default['de_admin_info_email']) ? $default['de_admin_info_email'] : '';
 }
 $str = preg_replace($src, $dst, $str);
 
diff --git a/head.sub.php b/head.sub.php
index 908754524..25b449fd5 100644
--- a/head.sub.php
+++ b/head.sub.php
@@ -15,8 +15,8 @@ if (!isset($g5['title'])) {
     $g5_head_title = $g5['title'];
 }
 else {
-    $g5_head_title = $g5['title']; // 상태바에 표시될 제목
-    $g5_head_title .= " | ".$config['cf_title'];
+    // 상태바에 표시될 제목
+    $g5_head_title = implode(' | ', array_filter(array('', $config['cf_title'])));
 }
 
 $g5['title'] = strip_tags($g5['title']);
diff --git a/lib/common.lib.php b/lib/common.lib.php
index 67321ecfd..6e5ac242a 100644
--- a/lib/common.lib.php
+++ b/lib/common.lib.php
@@ -1644,6 +1644,8 @@ function sql_fetch($sql, $error=G5_DISPLAY_SQL_ERROR, $link=null)
 // 결과값에서 한행 연관배열(이름으로)로 얻는다.
 function sql_fetch_array($result)
 {
+    if( ! $result) return array();
+
     if(function_exists('mysqli_fetch_assoc') && G5_MYSQLI_USE)
         $row = @mysqli_fetch_assoc($result);
     else
diff --git a/mobile/content.php b/mobile/content.php
index 701ca3e60..21f7f0132 100644
--- a/mobile/content.php
+++ b/mobile/content.php
@@ -16,29 +16,29 @@ $src[] = "/{{쇼핑몰명}}|{{홈페이지제목}}/";
 $dst[] = $config['cf_title'];
 if(isset($default) && isset($default['de_admin_company_name'])){
     $src[] = "/{{회사명}}|{{상호}}/";
-    $dst[] = $default['de_admin_company_name'];
+    $dst[] = isset($default['de_admin_company_name']) ? $default['de_admin_company_name'] : '';
     $src[] = "/{{대표자명}}/";
-    $dst[] = $default['de_admin_company_owner'];
+    $dst[] = isset($default['de_admin_company_owner']) ? $default['de_admin_company_owner'] : '';
     $src[] = "/{{사업자등록번호}}/";
-    $dst[] = $default['de_admin_company_saupja_no'];
+    $dst[] = isset($default['de_admin_company_saupja_no']) ? $default['de_admin_company_saupja_no'] : '';
     $src[] = "/{{대표전화번호}}/";
-    $dst[] = $default['de_admin_company_tel'];
+    $dst[] = isset($default['de_admin_company_tel']) ? $default['de_admin_company_tel'] : '';
     $src[] = "/{{팩스번호}}/";
-    $dst[] = $default['de_admin_company_fax'];
+    $dst[] = isset($default['de_admin_company_fax']) ? $default['de_admin_company_fax'] : '';
     $src[] = "/{{통신판매업신고번호}}/";
-    $dst[] = $default['de_admin_company_tongsin_no'];
+    $dst[] = isset($default['de_admin_company_tongsin_no']) ? $default['de_admin_company_tongsin_no'] : '';
     $src[] = "/{{사업장우편번호}}/";
-    $dst[] = $default['de_admin_company_zip'];
+    $dst[] = isset($default['de_admin_company_zip']) ? $default['de_admin_company_zip'] : '';
     $src[] = "/{{사업장주소}}/";
-    $dst[] = $default['de_admin_company_addr'];
+    $dst[] = isset($default['de_admin_company_addr']) ? $default['de_admin_company_addr'] : '';
     $src[] = "/{{운영자명}}|{{관리자명}}/";
-    $dst[] = $default['de_admin_name'];
+    $dst[] = isset($default['de_admin_name']) ? $default['de_admin_name'] : '';
     $src[] = "/{{운영자e-mail}}|{{관리자e-mail}}/i";
-    $dst[] = $default['de_admin_email'];
+    $dst[] = isset($default['de_admin_email']) ? $default['de_admin_email'] : '';
     $src[] = "/{{정보관리책임자명}}/";
-    $dst[] = $default['de_admin_info_name'];
+    $dst[] = isset($default['de_admin_info_name']) ? $default['de_admin_info_name'] : '';
     $src[] = "/{{정보관리책임자e-mail}}|{{정보책임자e-mail}}/i";
-    $dst[] = $default['de_admin_info_email'];
+    $dst[] = isset($default['de_admin_info_email']) ? $default['de_admin_info_email'] : '';
 }
 $str = preg_replace($src, $dst, $str);
 
diff --git a/theme/basic/head.sub.php b/theme/basic/head.sub.php
index e020fff3b..27b45fc86 100644
--- a/theme/basic/head.sub.php
+++ b/theme/basic/head.sub.php
@@ -9,8 +9,8 @@ if (!isset($g5['title'])) {
     $g5_head_title = $g5['title'];
 }
 else {
-    $g5_head_title = $g5['title']; // 상태바에 표시될 제목
-    $g5_head_title .= " | ".$config['cf_title'];
+    // 상태바에 표시될 제목
+    $g5_head_title = implode(' | ', array_filter(array($g5['title'], $config['cf_title'])));
 }
 
 $g5['title'] = strip_tags($g5['title']);