diff --git a/application/Espo/Services/Note.php b/application/Espo/Services/Note.php
index 84213a324e..f8071fd44c 100644
--- a/application/Espo/Services/Note.php
+++ b/application/Espo/Services/Note.php
@@ -169,6 +169,7 @@ class Note extends Record
     /**
      * @param NoteEntity $entity
      * @param stdClass $data
+     * @throws Forbidden
      */
     protected function beforeUpdateEntity(Entity $entity, $data)
     {
@@ -178,6 +179,10 @@ class Note extends Record
             $this->handlePostText($entity);
         }
 
+        if (!$entity->isPost() && !$this->user->isAdmin()) {
+            throw new ForbiddenSilent("Only 'Post' type allowed.");
+        }
+
         $entity->clear('targetType');
         $entity->clear('usersIds');
         $entity->clear('teamsIds');