phpSysInfo 2.3 allows remote attackers to obtain sensitive information via a direct request to (1) class.OpenBSD.inc.php, (2) class.NetBSD.inc.php, (3) class.FreeBSD.inc.php, (4) class.Darwin.inc.php, (5) XPath.class.php, (6) system_header.php, or (7) system_footer.php, which reveal the path in a PHP error message.