Multiple Cross Site Scripting (XSS) vulnerabilities exists in PHPGurukul Shopping v3.1 via the (1) callback parameter in (a) server_side/scripts/id_jsonp.php (b) server_side/scripts/jsonp.php and (c) scripts/objects_jsonp.php the (2) value parameter in examples_support/editable_ajax.php and the (3) PHP_SELF parameter in captcha/index.php.