Of course you can relay on vBulletin Publishing Suite as it has no exploits, 0days etc.

vBulletin Publishing Suite is a CMS that can be integrated/synchronised with your existing or new vBulletin forum. It's costs $285 for the first year with free updates and another $250 every year. Full list of features can be seen here.

If I was you I'd pick WordPress over vB Publishing Suite because its $0/lifetime, easier to customize, millions of plugins etc.

It really depends on your skills and targeted group.