Ticket #53348: 53348.diff

src/wp-login.php

@@ -371 +371 @@
         $action = 'resetpass';
 }
 
-if ( isset( $_GET['checkemail'] ) ) {
+// checkemail=confirm and checkemail=registered are valid
+if ( isset( $_GET['checkemail'] ) && ( 'confirm' === $_GET['checkemail'] || 'registered' === $_GET['checkemail'] ) ) {
         $action = 'checkemail';
 }
 
+// action=checkemail isn't used
+if ( isset( $_GET['action'] ) && 'checkemail' === $_GET['action'] ) {
+        $action = 'login';
+}
+
 $default_actions = array(
         'confirm_admin_email',
         'postpass',