Index: /temp/test-xoops.ec-cube.net/html/modules/newbb/post.php
===================================================================
--- /temp/test-xoops.ec-cube.net/html/modules/newbb/post.php	(revision 405)
+++ /temp/test-xoops.ec-cube.net/html/modules/newbb/post.php	(revision 944)
@@ -31,4 +31,9 @@
 
 include 'header.php';
+
+if(empty($_POST['check_spam'])) {
+	exit();
+}
+
 foreach (array('forum', 'topic_id', 'post_id', 'order', 'pid') as $getint) {
     ${$getint} = isset($_POST[$getint]) ? intval($_POST[$getint]) : 0;