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
https://github.com/phpmyadmin/phpmyadmin/commit/0f0c2f1e2b3ece41cc1bb99a9931c8fcc7c917bc
https://euvd.enisa.europa.eu/vulnerability/EUVD-2012-4163
http://www.phpmyadmin.net/home_page/security/PMASA-2012-3.php