SQL injection vulnerability in guestbook.php in Advanced Guestbook 2.4 for phpBB allows remote attackers to execute arbitrary SQl commands via the entry parameter.
Cross-site scripting (XSS) vulnerability in guestbook.php in Advanced Guestbook 2.4 for phpBB allows remote attackers to inject arbitrary web script or HTML via the entry parameter. NOTE: this issue might be resultant from SQL injection.
PHP remote file inclusion vulnerability in admin/addentry.php in phpBB Advanced Guestbook 2.4.0 and earlier, when registerglobals is enabled, allows remote attackers to include arbitrary files via the phpbbrootpath parameter.