GeniXCMS before 1.1.0 allows remote attackers to cause a denial of service (account blockage) by leveraging the mishandling of certain username substring relationships, such as the admin<script> username versus the admin username, related to register.php, User.class.php, and Type.class.php.
SQL injection vulnerability in register.php in GeniXCMS before 1.0.0 allows remote attackers to execute arbitrary SQL commands via the activation parameter.