Multiple open redirect vulnerabilities in NopCommerce 4.10 through 4.50.1 allow remote attackers to conduct phishing attacks by redirecting users to attacker-controlled web sites via the returnUrl parameter, processed by the (1) ChangePassword function, (2) SignInCustomerAsync function, (3) SuccessfulAuthentication method, or (4) NopRedirectResultExecutor class.
In nopCommerce 4.50.1, an open redirect vulnerability can be triggered by luring a user to authenticate to a nopCommerce page by clicking on a crafted link.
In nopCommerce 4.30, a Reflected XSS issue in the Discount Coupon component allows remote attackers to inject arbitrary web script or HTML through the Filters/CheckDiscountCouponAttribute.cs discountcode parameter.