Did you figure out level 2 of the HackThisSite.org Basic Missions? Here’s the mission:
Network Security Sam set up a password protection script. He made it load the real password from an unencrypted text file and compare it to the password the user enters. However, he neglected to upload the password file…
Read the mission briefing very carefully. A script loads a password from a file. There isn’t a file, so the script won’t load anything, meaning the variable will be…empty (blank). Clicking the Submit button with an empty password field should do it.
That worked. Mission accomplished.