An issue was discovered in ISPConfig before 3.2.11p1. PHP code injection can be achieved in the language file editor by an admin if admin_allow_langedit is enabled.
An unanchored /[a-z]{2}/ regular expression in ISPConfig before 3.1.13 makes it possible to include arbitrary files, leading to code execution. This is exploitable by authenticated users who have local filesystem access.
PHP remote file inclusion vulnerability in session.inc.php in ISPConfig 2.2.2 and earlier allows remote attackers to execute arbitrary PHP code via a URL in the go_info[server][classes_root] parameter. NOTE: the vendor has disputed this vulnerability, saying that session.inc.php is not under the web root in version 2.2, and register_globals is not enabled