Multiple SQL injection vulnerabilities in admin/usercheck.php in FlexPHPLink Pro 0.0.6 and 0.0.7, when magic_quotes_gpc is disabled, allow remote attackers to execute arbitrary SQL commands via (1) the checkuser parameter (aka username field), or (2) the checkpass parameter (aka password field), to admin/index.php.

Unrestricted file upload vulnerability in submitlink.php in FlexPHPLink Pro 0.0.7 allows remote attackers to execute arbitrary PHP code by uploading a file with an executable extension, then accessing it via a direct request to the renamed file in linkphoto/.