Index: ajax.php
===================================================================
--- ajax.php	(revision 7729)
+++ ajax.php	(working copy)
@@ -638,6 +638,10 @@
 	// Cast fid as an integer
 	$friend_id = (int) $_POST['fid'];
 
+	// Prevent POST request from member to himself
+	if ( bp_loggedin_user_id() == $friend_id )
+		exit();
+	
 	// Trying to cancel friendship
 	if ( 'is_friend' == BP_Friends_Friendship::check_is_friend( bp_loggedin_user_id(), $friend_id ) ) {
 		check_ajax_referer( 'friends_remove_friend' );