The ec_ajax_update_option and ec_ajax_clear_all_taxrates functions in inc/admin/admin_ajax_functions.php in the WP EasyCart plugin 1.1.30 through 3.0.20 for WordPress allow remote attackers to gain administrator privileges and execute arbitrary code via the option_name and option_value parameters.

The EasyCart (wp-easycart) plugin before 2.0.6 for WordPress allows remote attackers to obtain configuration information via a direct request to inc/admin/phpinfo.php, which calls the phpinfo function.