environment. That way you can get most of the problems that
might be there refering to the file system. Don't get me
wrong - that can
a substitute for a good check
against what will be sent. I would sugguest to strip every
and backticks out of it - it's almost
impossible to make those secure. Keep it that way: The more
you restrict the more secure the thing is. Keep in mind
what you really want to achieve and don't permit them more
than that. Stripping down permissions is IMHO the wrong
approach to a secure system - giving (some) permissions is
the way you should go.