Security issue like "Custom Contact Forms"?

Hey!

I came across this security issue in another WP contact form plugin and I wanted to ask if yours is vulnerable for the same exploit (see link below)?

http://blog.sucuri.net/2014/08/database-takeover-in-custom-contact-forms.html?

Thanks!

Timo

PS: using the latest plugin version downloaded today

https://wordpress.org/plugins/contact-form-7/