h1-5411-CTF: MemeCTF serial exploitation to local file read to Papertrail access via API-token leakage and more

Hi there dear CTF staff! First of all a huge thank you for the great challenge you put up! I've found it super exciting and the learning curve has been steep. For this case, I was first wondering if this is a part of the actual CTF, but after some inspecting, it surely doesn't seem so! I did even...