If you follow the threads, it looks like the original post wasn’t exploitable. It looks like it was hacked within an hour of being made exploitable (actually running php).
Would be cool to get an accurate timeline / postmortem from the author of the site.
Yes, I followed along at the time. As I recall, the explanation of why the server wasn’t exploitable read exactly like an excerpt from a session with a frontier model explaining why its exploit failed.