diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 457db56..63eb75c 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -64,6 +64,7 @@
 <ul>
 	<li>Libraries
 		<ul>
+			<li>Fixed an arbitrary script execution security flaw (#6068) in the Form Validation library (thanks to hkk)</li>
 			<li>Changed default current page indicator in the Pagination library to use &lt;strong&gt; instead of &lt;b&gt;</li>
 			<li>A "HTTP/1.1 400 Bad Request" header is now sent when disallowed characters are encountered.</li>
 			<li>Added &lt;big&gt;, &lt;small&gt;, &lt;q&gt;, and &lt;tt&gt; to the Typography parser's inline elements.</li>