We recently received a report by "ZeroDayScan", about a "Full path disclosure bug in Drupal 6.16".

You can read the story @ http://blog.zerodayscan.com/2010/04/full-path-disclosure-bug-in-drupal-6.... As my short comment was removed from the post, I have to resort to a blogpost. My apologies for polluting the Planet.

Summary of the issue: If you set error reporting to the default value "Write errors to the log and to the screen", the installation path is displayed on the ...*drumroll*... screen.

Which is of course the point.