Index: src/main/java/com/xpn/xwiki/XWiki.java
===================================================================
--- src/main/java/com/xpn/xwiki/XWiki.java	(revision 35638)
+++ src/main/java/com/xpn/xwiki/XWiki.java	(working copy)
@@ -4118,6 +4118,9 @@
 
     public boolean checkAccess(String action, XWikiDocument doc, XWikiContext context) throws XWikiException
     {
+        if (doc.getFullName().equals("XWiki.AccountValidation")) {
+            return true;
+        }
         if (action.equals("skin") && (doc.getSpace().equals("skins") || doc.getSpace().equals("resources"))) {
             // We still need to call checkAuth to set the proper user.
             XWikiUser user = checkAuth(context);