diff -r 880c4b7eb658 -r 9d5c04c1414f includes/pageprocess.php
--- a/includes/pageprocess.php	Sat Jan 17 15:16:36 2009 -0500
+++ b/includes/pageprocess.php	Sun Jan 25 21:18:05 2009 -0500
@@ -198,6 +198,11 @@
         return false;
       }
     }
+    if ( $this->revision_id > 0 && !$this->perms->get_permissions('history_view') )
+    {
+      $this->err_access_denied();
+      return false;
+    }
     
     // Is there a custom function registered for handling this namespace?
     // DEPRECATED (even though it only saw its way into one alpha release.)
@@ -443,6 +448,13 @@
       }
     }
     
+    // Spam check
+    if ( !spamalyze($text) )
+    {
+      $this->raise_error($lang->get('editor_err_spamcheck_failed'));
+      return false;
+    }
+    
     //
     // Protection validated; update page content
     //