The Order GLPI plugin allows users to manage order management within GLPI. Starting with version 1.8.0 and prior to versions 2.7.7 and 2.10.1, an authenticated user that has access to standard interface can craft an URL that can be used to execute a system command. Versions 2.7.7 and 2.10.1 contain a patch for this issue. As a workaround, delete the ajax/dropdownContact.php file from the plugin.