Sara, a hacker, is completing a website form to request a free coupon. The site has a field that limits the request to 3 or fewer coupons. While submitting the form, Sara runs an application on her…

Sara, a hacker, is completing a website form to request a free coupon. The site has a field that limits the request to 3 or fewer coupons. While submitting the form, Sara runs an application on her machine to intercept the HTTP POST command and change the field from 3 coupons to 30. Which of the following was used to perform this attack?