The Grinch thought it might be a good idea to start a forum but nobody really wants to chat to him. He keeps his best posts in the Admin section but you’ll need a valid login to access that!

phpmyadmin

github-leak-password

git commit history reveals password of “forum”
forum/6HgeAZ0qC9T6CQIqJpD

user

login to phpmyadmin, get the user table and find admin user grinch and its password’s md5 hash.
look up the md5 hash on https://md5.gromweb.com/?md5=35D652126CA1706B59DB02C93E0C9FBF, get the password.

then, login to forum and visit the admin post.