Multiple cross-site scripting (XSS) vulnerabilities in Realty Pro One allow remote attackers to inject arbitrary web script or HTML via the (1) listingid parameter to (a) images.php, (b) index_other.php, or (c) request_info.php; (2) propertyid parameter to (d) searchlookup.php, (3) id parameter to (e) images.php, or (4) agentid parameter to (f) request_info.php.  NOTE: some of these issues might be resultant from SQL injection.