Fix vulnerability in handling _session argument of utils/save-prefs (#1489382)

Aleksander Machniak

2013-10-17 037af6890fe6fdb84a08d3c86083e847c90ec0ad

 program/lib/Roundcube/html.php

@@ -771,6 +771,11 @@
            $index = $this->rowindex;
        }

        // make sure row object exists (#1489094)
        if (!$this->rows[$index]) {
            $this->rows[$index] = new stdClass;
        }

        $this->rows[$index]->attrib = $attr;
    }