App.Listeners.MAIL_ACC.init = function() {
    $('.unlim-trigger').each(function(i, elm) {
        var ref = $(elm).prev('.vst-input');
        if (App.Helpers.isUnlimitedValue($(ref).val())) {
            App.Actions.MAIL_ACC.enable_unlimited(ref, elm);
        }
        else {
            $(ref).data('prev_value', $(ref).val());
            App.Actions.MAIL_ACC.disable_unlimited(ref, elm);
        }
    });
}
The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.