[Andreas]

Originally Posted by Boofo

That might be a false positive. I have been getting a couple of them every now and then on default vb files.

Yes and No

The above happens when the page was generated for a guest, but is later being submitted for a registered user.

As the user was a guest when the page was being generated, the token is empty.
But when he submits it later, he is being logged in - and thus the token is required and missing.