I do think it is useful for all people to understand that they can experiment with permissions on their server in order to try and resolve problems.
and No-ONE said otherwise.
As for 777 security. The word world or all refers to the server and not the greater outside world.
Both Sam and I are aware of that. really.
there would need to be access above that particular directory, such as an application / script or FTP.
thats not exactly correct and I CAN demonstrate it.
A typical setup:
/
/home
/blah
all dirs are owned by root.
inside /home lets put
/home/you
and /home/me
you own /home/you and I, of course, own /home/me
You chmod /home/you to 777 and I assure you that I, being “me”, can cd into the /home/you/ directory, ls -la and proceed to edit your files.
if thats NOT a security risk to you, you need to rethink something.
Furthermore, that simplemachines says that 777 isnt an issue — is the same exact crap that the people that decided to suggest that everyone make wp-content/ world-writable so that theme files could be edited, etc.. etc.. like to toss out every once in a while.
Crap.
This btw, is demonstrated over and over again, by php shells uploaded to a single users directory that wrek fsking havoc on other user’s sites.
That there are millions of sites set up this way doesnt further your argument that it’s somehow or remotely safe.