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.
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.