Multiple SQL injection vulnerabilities in vTiger CRM 5.0.0 through 5.4.0 allow remote attackers to execute arbitrary SQL commands via the (1) picklist_name parameter in the get_picklists method to soap/customerportal.php, (2) where parameter in the get_tickets_list method to soap/customerportal.php, or (3) emailaddress parameter in the SearchContactsByEmail method to soap/vtigerolservice.php; or remote authenticated users to execute arbitrary SQL commands via the (4) emailaddress parameter in the SearchContactsByEmail method to soap/thunderbirdplugin.php.