check.php in Hinton Design phphd 1.0 does not check passwords when certain cookies are provided, which allows remote attackers to bypass authentication.

Multiple SQL injection vulnerabilities in Hinton Design phphg Guestbook 1.2 allow remote attackers to execute arbitrary SQL commands via the (1) username parameter to check.php or the id parameter to (2) admin/edit_smilie.php, (3) admin/add_theme.php, (4) admin/ban_ip.php, (5) admin/add_lang.php, or (6) admin/edit_filter.php.

Multiple SQL injection vulnerabilities in Hinton Design phphd 1.0 allow remote attackers to execute arbitrary SQL commands via (1) the username parameter to check.php or (2) unknown attack vectors to scripts that display information from the database.

Multiple SQL injection vulnerabilities in phpstatus 1.0, when gpc_magic_quotes is disabled, allow remote attackers to execute arbitrary SQL commands and bypass authentication via (1) the username parameter in check.php and (2) unknown attack vectors in the administrative interface.

Multiple cross-site scripting (XSS) vulnerabilities in phpstatus 1.0 allow remote attackers to inject arbitrary web script or HTML via unknown attack vectors in the administrative interface.

phpstatus 1.0 does not require passwords when using cookies to identify a user, which allows remote attackers to bypass authentication.