Bug 754673 - CSRF vulnerability in query.cgi allows possible unauthorized use of…

query.cgi

@@ -20,6 +20,7 @@ use Bugzilla::Product;
 use Bugzilla::Keyword;
 use Bugzilla::Field;
 use Bugzilla::Install::Util qw(vers_cmp);
+use Bugzilla::Token;
 
 ###############
 # Subroutines #
@@ -72,6 +73,8 @@ my $userid = $user->id;
 
 if ($cgi->param('nukedefaultquery')) {
     if ($userid) {
+        my $token = $cgi->param('token');
+        check_hash_token($token, ['nukedefaultquery']);
         $dbh->do("DELETE FROM namedqueries" .
                  " WHERE userid = ? AND name = ?", 
                  undef, ($userid, DEFAULT_QUERY_NAME));

template/en/default/search/knob.html.tmpl

@@ -62,7 +62,8 @@
         
 [% IF userdefaultquery %]
   <p>
-    <a href="query.cgi?nukedefaultquery=1">
+    <a href="query.cgi?nukedefaultquery=1&amp;token=
+       [%- issue_hash_token(['nukedefaultquery']) FILTER uri %]">
       Set my default search back to the system default</a>.
   </p>
 [% END %]