backend/app/plugins/wiaas/includes/class-wiaas-cart.php

@@ -248,6 +248,10 @@ class Wiaas_Cart {
 	 * @return bool
 	 */
 	public static function update_package_quantity($package_cart_item_key, $new_quantity) {
+		if ($new_quantity > 65000){
+			return false;
+		}
+		
 		$cart_item = WC()->cart->get_cart_item($package_cart_item_key);
 
 		if (!$cart_item) {

frontend/src/containers/cart/components/CartItem.jsx

@@ -40,8 +40,8 @@ class CartItem extends Component {
 
     updateQuantity(cartItem, quantity) {
         if(quantity) {
-            this.setState({itemQuantity: quantity});
             if(this.isQuantityValid(quantity)) {
+                this.setState({itemQuantity: quantity});
                 this.sumPrices(cartItem, quantity);
                 this.props.dispatch(updateQuantity(cartItem, quantity));
             } else {