diff --git a/adm/board_copy_update.php b/adm/board_copy_update.php
index 95df487a4..fede12b88 100644
--- a/adm/board_copy_update.php
+++ b/adm/board_copy_update.php
@@ -2,6 +2,8 @@
 $sub_menu = '300100';
 include_once('./_common.php');
 
+check_demo();
+
 auth_check($auth[$sub_menu], 'w');
 
 check_admin_token();
diff --git a/lib/latest.lib.php b/lib/latest.lib.php
index 9e9372774..55dd826db 100644
--- a/lib/latest.lib.php
+++ b/lib/latest.lib.php
@@ -66,7 +66,7 @@ function latest($skin_dir='', $bo_table, $rows=10, $subject_len=40, $cache_time=
 
         if($cache_fwrite) {
             $handle = fopen($cache_file, 'w');
-            $cache_content = "<?php\nif (!defined('_GNUBOARD_')) exit;\n\$bo_subject='".$bo_subject."';\n\$list=".var_export($list, true)."?>";
+            $cache_content = "<?php\nif (!defined('_GNUBOARD_')) exit;\n\$bo_subject='".sql_escape_string($bo_subject)."';\n\$list=".var_export($list, true)."?>";
             fwrite($handle, $cache_content);
             fclose($handle);
         }