CVE-2021-26916: Nopcommerce

Medium severity, CVSS 6.1. EPSS: 1.1% chance of exploitation in the next 30 days.

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.

Affected products

• Nopcommerce Nopcommerce: version 4.30 only

Published 2021-02-08. Last modified 2026-06-17.