I have Page Form extension instaled on my Mediawiki. I have text field in with i want to store password information. In my template i have next code

{{#if:{{{mailboxpass|}}}|{{{mailboxpass}}}|<span style="color: red">no</span>}}

In my form i have next code

{{{field|mailboxpass|size = 20}}}

But when i add text like this Q?}6Ogcp in this field i have a error because Mediawiki engine sees an unclosed bracket. How can I make sure that such password storage fields are not checked for syntax correctness? And what Mediawiki would not try to apply markup to such fields?

Thank you!