Multiple directory traversal vulnerabilities in PHP-Stats 0.1.9.1 and earlier allow remote attackers to read and possibly execute arbitrary files via a .. (dot dot) in the (1) option[language] and (2) option[template] parameters, and (3) possibly other parameters, to (a) admin.php and (b) other unspecified scripts. NOTE: the admin.php/option[language] vector can be used by remote unauthenticated attackers to include arbitrary files in conjunction with CVE-2006-1085.

Multiple SQL injection vulnerabilities in PHP-Stats 0.1.9.1 and earlier allow remote attackers to execute arbitrary SQL commands via (1) the option[prefix] parameter in admin.php and other unspecified PHP scripts, and (2) the PC_REMOTE_ADDR HTTP header to click.php.

admin.php in PHP-Stats 0.1.9.1 and earlier allows remote attackers to bypass authentication, gain administrator privileges, and execute arbitrary PHP code by modifying the option[admin_pass] parameter and setting the pass_cookie to the MD5 hash of the specified password.

Direct static code injection vulnerability in the modify_config action in admin.php for PHP-Stats 0.1.9.1 and earlier allows remote authenticated administrators to execute arbitrary PHP code via the option_new[compatibility_mode] parameter, which is not filtered before being stored in config.php. NOTE: this vulnerability can be exploited by remote unauthenticated attackers in conjunction with the option[admin_pass] authentication bypass vulnerability.

PHP-Stats 0.1.9.1 and earlier allows remote attackers to obtain potentially sensitive information via a direct request to checktables.php, which lists the database table_prefix.