** DISPUTED **  Multiple PHP remote file inclusion vulnerabilities in Guestbook Script 1.9 allow remote attackers to execute arbitrary PHP code via a URL in the script_root parameter to (1) delete.php, (2) edit.php, or (3) inc/common.inc.php; or (4) database.php, (5) entries.php, (6) index.php, (7) logout.php, or (8) settings.php in admin/.  NOTE: a third party disputes this vulnerability, noting that these scripts defend against direct requests.