A Simple Writeup is posted on Medium - / cyberw1ng
This lab contains a blind SQL injection vulnerability. The application uses a tracking cookie for analytics and performs a SQL query containing the value of the submitted cookie. The SQL query is executed asynchronously and has no effect on the application's response. However, you can trigger out-of-band interactions with an external domain. To solve the lab, exploit the SQL injection vulnerability to cause a DNS lookup to Burp Collaborator | Karthikeyan Nagaraj
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