I just want to know if there are any bugs in that Snitz forum, and if there is any "backdoors" thrue blocks??

I want a safe forum on my site and i'm doing some research if my teacher is right this should be a safe forum? [snowboard]

In other words i would like to know if i can stop ppl getting thrue blocks on forums?
(if it's possible to get thrue a block)
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*ZmaJL*