Any admin hosting a site which deals with discussions of a financial nature who couldn't even be bothered to upgrade along the 1.1.xx path (yet alone switch to v.2) should hang their head in shame.
What are you talking about? This is the latest upgrade in the 1.1.xx path.
Sorry, I stand corrected. Weren't you running 1.1.13 until very recently? I still stand by the other points raised though.
I am not aware of any other vulnerabilities. If vulnerabilities exist, report them to me and I will take the forum down until they are fixed.
How to keep abreast of security vulnerabilities in SMF 1.1.14 - From there you should be able to click your way to discovering less known vulnerabilities. Also, a tip: Check your plugins for holes.
If you need any further help, I normally charge £200ph an hour for IT consultancy, though I've never worked on any site which has ever used SMF. PM me if you are interested and I will forward you my wallet info.