    public function getCode( $tagName, $usesOption = false )
    {
        foreach ($this->bbcodes as $code) {
            if (strtolower($tagName) == $code->getTagName() && $code->usesOption() == $usesOption) {
                return $code;
            }
        }

        return null;
    }
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.