diff --git a/main/inc/lib/userportal.lib.php b/main/inc/lib/userportal.lib.php
index 7fe2739f8a..8196fd9d5c 100755
--- a/main/inc/lib/userportal.lib.php
+++ b/main/inc/lib/userportal.lib.php
@@ -1007,11 +1007,14 @@ class IndexManager
         // Tabs that are deactivated are added here.
         if (!empty($this->tpl->menu_navigation)) {
             foreach ($this->tpl->menu_navigation as $section => $navigation_info) {
-                $items[] = [
-                    'icon' => null,
-                    'link' => $navigation_info['url'],
-                    'title' => $navigation_info['title'],
-                ];
+                
+                if (!empty($navigation_info)) {
+                    $items[] = [
+                        'icon' => null,
+                        'link' => $navigation_info['url'],
+                        'title' => $navigation_info['title'],
+                    ];
+                }
             }
         }
 
diff --git a/main/webservices/testip.php b/main/webservices/testip.php
index 7c1928317f..01e1061d8c 100755
--- a/main/webservices/testip.php
+++ b/main/webservices/testip.php
@@ -3,9 +3,16 @@
 /**
  *  @package chamilo.webservices
  */
-$ip = trim($_SERVER['REMOTE_ADDR']);
+$ip = '';
+if (!empty($_SERVER['REMOTE_ADDR'])) {
+    $ip = trim($_SERVER['REMOTE_ADDR']);
+}
 if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
-    list($ip1, $ip2) = preg_split('/,/', $_SERVER['HTTP_X_FORWARDED_FOR']);
-    $ip = trim($ip1);
+    if (filter_var($_SERVER['HTTP_X_FORWARDED_FOR'], FILTER_FLAG_IPV4 | FILTER_FLAG_IPV6) == $_SERVER['HTTP_X_FORWARDED_FOR']) {
+        list($ip1, $ip2) = preg_split('/,/', $_SERVER['HTTP_X_FORWARDED_FOR']);
+        $ip = trim($ip1);
+    }
+}
+if (!empty($ip) && filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 | FILTER_FLAG_IPV6)) {
+    echo htmlentities($ip);
 }
-echo htmlentities($ip);