SQL injection vulnerability in index.php in X7 Chat 2.0.5 and possibly earlier allows remote attackers to execute arbitrary SQL commands via the day parameter in a sm_window action.

Directory traversal vulnerability in help/mini.php in X7 Chat 2.0.1 A1 and earlier allows remote attackers to include and execute arbitrary local files via directory traversal sequences in the help_file parameter, a different vector than CVE-2006-2156.

SQL injection vulnerability in the login page in X7 Chat 2.0.5 allows remote attackers to execute arbitrary SQL commands via the password field.

Multiple cross-site scripting (XSS) vulnerabilities in X7 Chat 2.0.4, 2.0.5, and possibly other versions allow remote attackers to inject arbitrary web script or HTML via the (1) room parameter to sources/frame.php, the (2) theme_c parameter to help/index.php, or the (3) INSTALL_X7CHATVERSION parameter to upgradev1.php.

Directory traversal vulnerability in help/index.php in X7 Chat 2.0 and earlier allows remote attackers to include arbitrary files via .. (dot dot) sequences in the help_file parameter.

Cross-site scripting (XSS) vulnerability in X7 Chat 2.0.2 and earlier allows remote attackers to inject arbitrary web script or HTML via a javascript URI in the URL of an avatar, possibly related to the avatar parameter in register.php.

SQL injection vulnerability in upgradev1.php in X7 Chat 2.0.4 and earlier allows remote attackers to execute arbitrary SQL commands via the old_prefix parameter.

Cross-site request forgery (CSRF) vulnerability in X7 Chat 2.0.5.1 and earlier allows remote attackers to hijack the authentication of administrators for requests that add a user to an arbitrary group via the users page in an adminpanel action to index.php.