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.
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.
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 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.