Joomla/WordPress/CMS Permissions
With the way that Hsphere and cPanel work in our shared environments, all CMS permissions should be set as follows:
Directories - 755
Files - 644
If permissions have been changed or if you're unsure which permissions are which, you can run the following commands to change all files and directories recursively:
find . -type d -exec chmod 755 {} \;
find . -type f -exec chmod 644 {} \;
You need to make sure file ownership is correct as well. The user and the group need to match the username. Finally, make sure that fastcgi is selected in hsphere under the PHP Advanced section under Web Options.