Multiple directory traversal vulnerabilities in TeamCal Pro 3.1.000 and earlier allow remote attackers to include and execute arbitrary local files via a .. (dot dot) in the lang parameter to (1) index.php, (2) register.php, (3) login.php, or (4) statistics.php.
PHP remote file inclusion vulnerability in includes/footer.html.inc.php in TeamCal Pro 2.8.001 and earlier allows remote attackers to execute arbitrary PHP code via a URL in the tc_config[app_root] parameter.