Multiple SQL injection vulnerabilities in ol-commerce 2.1.1 allow remote attackers to execute arbitrary SQL commands via the (1) a_country parameter in a process action to affiliate_signup.php, (2) affiliate_banner_id parameter to affiliate_show_banner.php, (3) country parameter in a process action to create_account.php, or (4) entry_country_id parameter in an edit action to admin/create_account.php.