This was my first CTF solve ever!
https://missing-flavortext.dicec.tf/
As a less-than-expert user of JavaScript and Sql, and complete newbie to Node.js, this challenge was quite the ride for myself and a couple teammates.
First off, the webpage is a simple login portal that redirects you back to itself if the password check fails. Not much to note here, except that the browser sends a form post request containing the username and password.