- session removal fix (CSRF)

Marius Cramer

2015-05-21 c8b685ac05228a5ce5bf967d70560b880bb243bb

 interface/lib/classes/tform_base.inc.php

@@ -709,11 +709,13 @@
            }
            if($_csrf_valid !== true) {
               $app->log('CSRF attempt blocked. Referer: ' . (isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : 'unknown'), LOGLEVEL_WARN);
               $errmsg = 'err_csrf_attempt_blocked';
               $this->errorMessage .= ($api == true ? $errmsg : $this->wordbook[$errmsg]."<br />") . "\r\n";
               unset($_POST);
               unset($record);
            }
            $_SESSION['_csrf'][$_csrf_id] = ' ';
            $_SESSION['_csrf_timeout'][$_csrf_id] = ' ';
            $_SESSION['_csrf'][$_csrf_id] = null;
            $_SESSION['_csrf_timeout'][$_csrf_id] = null;
            unset($_SESSION['_csrf'][$_csrf_id]);
            unset($_SESSION['_csrf_timeout'][$_csrf_id]);
            
@@ -723,6 +725,8 @@
                  if($timeout < time()) $to_unset[] = $_csrf_id;
               }
               foreach($to_unset as $_csrf_id) {
                  $_SESSION['_csrf'][$_csrf_id] = null;
                  $_SESSION['_csrf_timeout'][$_csrf_id] = null;
                  unset($_SESSION['_csrf'][$_csrf_id]);
                  unset($_SESSION['_csrf_timeout'][$_csrf_id]);
               }