they have a new issue and say should not effect 3.0 but say this
The directories that should be deleted are:
4.x - /install/
5.x - /core/install
On vB5, make sure you delete only the install folder, not the core folder.
After deleting these directories your sites can not be affected by the issues we’re currently investigating.
vBulletin
3.x would not be affected by these issues. However if you want the best
security precautions, you should delete your install directory as well.
attached is a picture of my folders, do I delete the whole install folder or just parts. thank you in advance
Attachment 378