Can’t change the email receiver

A client of us coouldn’t change the value of the “To”-field.
So I debug it and found the cause of this issue.

In deprecated/includes/admin/save.php:23 each item of $_POST which doesn’t start with an underscore will be passed through esc_html.

But this is what the contents of $_POST look like

notification_id: '22'
settings: array (
  'name' => 'E-Mail',
  'type' => 'email',
  'from_name' => 'Name of the Form',
  'from_address' => 'field_62',
  'to' => '[email protected]',
  'email_subject' => 'email subject',
  'email_message' => '[ninja_forms_all_fields]',
  'attach_csv' => '0',
  'email_format' => 'html',
  'reply_to' => '',
  'cc' => '',
  'bcc' => '',
  'redirect_url' => '',
  'success_msg' => '',
)

As you see settings is an array and when passed through esc_html it become to ‘Array’. Therefore the content of $_POST[‘settings’] are ignored.

After altering the foreach-loop to

foreach ( $_POST as $key => $val ) {
				if ( substr($key, 0, 1) != '_') {
					if($key != 'settings'){
						$data_array[$key] = esc_html($val);
					}
					else{
						$data_array[$key] = $val;
					}
				}
			}

the settings are saved as expected.

If you want to have my fixed version please contact me and I will send the file to you asap.