我在后端的Joomla文章中创建了一个textarea。我尝试在textarea中添加<script>alert('hi');</script>，但在保存文章时出现以下错误。
Forbidden
You don't have permission to access /dev/administrator/index.php on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.