Hilarious. Exposing an LFI to view things like /etc/passwd and server logs, and a SQL injection in a PHP stack... I prob wrote code like this, when I was a 15 year-old self-described "webmaster" in 2002.
Very informative! I tried doing something similar to these sites months ago after getting multiple text messages from them, but didn't really get anywhere. Very cool to see a professional walk through what they did!
Readers may want to read all of them of course.