Shopify: Stored XSS via "Free Shipping" option (Discounts)

POC steps: 1 Go to the customers page and add a new search group named as "img src=x onerror=prompt7 see img1.png 2 Go to the discounts page, create a new discount code and mark the "Free Shipping" option. 3 Open a web proxy i.e. tamper data and press the "save discount" button. 4 Through the web...