Add a nonce field to the signup page.

Description Description

Source Source

File: wp-includes/ms-functions.php

function signup_nonce_fields() {
	$id = mt_rand();
	echo "<input type='hidden' name='signup_form_id' value='{$id}' />";
	wp_nonce_field( 'signup_form_' . $id, '_signup_form', false );

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Version Description
MU (3.0.0) Introduced.

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