    public function sum($return_amount = true)
    {
        if($return_amount ){
            return $this->app->cart_repository->getCartAmount();
        } else {
            return $this->app->cart_repository->getCartItemsCount();
        }

    }
NVD is only using a subset of CWE for mapping instead of the entire CWE, and the weakness type is not covered by that subset.