show_config_errors.php in phpMyAdmin 3.5.x before 3.5.2.1 allows remote attackers to obtain sensitive information via a direct request, which reveals the installation path in an error message, related to lack of inclusion of the common.inc.php library file.
https://hermes.opensuse.org/messages/15513071
http://www.phpmyadmin.net/home_page/security/PMASA-2012-3.php