diff --git a/models/DataObject/ClassDefinition/Service.php b/models/DataObject/ClassDefinition/Service.php
index 9b6f6918aae..68126184116 100644
--- a/models/DataObject/ClassDefinition/Service.php
+++ b/models/DataObject/ClassDefinition/Service.php
@@ -341,6 +341,11 @@ public static function importObjectBrickFromJson($objectBrick, $json, $throwExce
     public static function generateLayoutTreeFromArray($array, $throwException = false, $insideLocalizedField = false)
     {
         if (is_array($array) && count($array) > 0) {
+            if ($title = $array['title'] ?? false) {
+                if (preg_match('/<.+?>/', $title)) {
+                    throw new \Exception('not a valid title:' . htmlentities($title));
+                }
+            }
             if ($name = $array['name'] ?? false) {
                 if (preg_match('/<.+?>/', $name)) {
                     throw new \Exception('not a valid name:' . htmlentities($name));