This lab contains a SQL injection vulnerability in the login function. To solve the lab, perform a SQL injection attack that logs in to the application as the administrator user.
This is what you see when you first arrive at the main page.

Clicking on My account button takes you to the login page.

Enter administrator' or 1=1-- in the Username field and any random characters in the Password field. This payload bypasses the password check because the SQL query always evaluates to true.

Solved!
