Back to original content of 710 revision. Use phpmyadmin at the same host of ispconfig can be compromise server if have any bugs on phpmyadmin. Reported by till on forum.

Author: moglia

interface/web/sites/database_phpmyadmin.php

@@ -58,7 +58,6 @@
  * We only redirect to the login-form, so there is no need, to check any rights
  */
 isset($_SERVER['HTTPS'])? $http = 'https' : $http = 'http';
-($_SERVER["SERVER_PORT"] != '80' and $http == 'https')? $serverPort = ':'.$_SERVER["SERVER_PORT"] : $serverPort = '';
-header('location:'.$http.'://'.$serverData['server_name'].$serverPort.'/phpmyadmin');
+header('location:' . $http . '://' . $serverData['server_name'] . '/phpmyadmin');
 exit;
 ?>