The database schema consists of two tables: users and products .

The third challenge requires us to escalate privileges to gain access to the products table. We need to inject a SQL query that will modify the products table.

Using SQL injection, we inject the following query: 1' UNION SELECT load_file('/etc/passwd') -- . This query will extract the contents of the /etc/passwd file.

We can escalate privileges by injecting the following query: 1' UNION SELECT 'admin', 'admin', 'admin' INTO users -- . This query will create a new user with admin privileges.