Multiple cross-site scripting (XSS) vulnerabilities in Advanced Guestbook 2.2 and 2.3.1 allow remote attackers to inject arbitrary web script or HTML via (1) the entry parameter in index.php and (2) the gb_id parameter in comment.php. NOTE: The index.php/entry vector might be resultant from CVE-2005-1548.
SQL injection vulnerability in admin.php in Advanced Guestbook 2.2 allows remote attackers to execute arbitrary SQL commands and gain privileges via the username field.
Cross-site scripting (XSS) vulnerability in index.php in Advanced Guestbook 2.3.1, 2.2, and possibly other versions allows remote attackers to inject arbitrary web script or HTML via the entry parameter.