If you have selected a minimum age in the registry (Eg 13 years) when a user registers on the site and in the field age introduces a year with only two digits instead of four digits (Eg 1 January 02 or 2 instead of January 1 2002) this value is not checked correctly allowing the user to register on the site.
I have checked this in xenforo.com and happens the same way as that described.
I have checked this in xenforo.com and happens the same way as that described.