InCTF Jr Qualifiers 2021
Starts 6PM, 28th Dec
InCTF Jr

Big Shop

Medium Web

Author: Aneesh

Analysis

first we have to login and then we can see two products flag and emm with 200 and 100 price respectively.We can add both the products to the cart but we can't buy flag because it shows you have not enough money

Solution

But there is an idor vulnerablity in the buying requests ,we can change the pid=1 and it will buy the flag then we can open flag