diff --git a/documentation/changelog.html b/documentation/changelog.html
index 6031cfd0db..c9d6c57d84 100644
--- a/documentation/changelog.html
+++ b/documentation/changelog.html
@@ -124,7 +124,8 @@
   <li>Agenda tool: Fixed a wrong range for hour selection. The bug has been reported and solved in a forum by TL (FS#3324)</li>
   <li>Agenda tool: style changes - Align drop-down lists in date and time when you add a new calendar event and modify it</li>
   <li>Fixed Date Validation  when you add a new exercises and modify it (FS#3249)</li>
-  <li>Tests tool: Fixed broken filter on orphan questions in questions pool, reported and solved in the forums by mark111 (FS#3329)</li>  
+  <li>Tests tool: Fixed broken filter on orphan questions in questions pool, reported and solved in the forums by mark111 (FS#3329)</li>
+  <li>Fixed security flaw allowing anonymous user to enter "open to the platform" courses (FS#3359 - SVN#17499)</li>  
 </ul>
 <br />
 <h3>CSS changes</h3>