Multiple cross-site request forgery (CSRF) vulnerabilities in mainfile.php in Francisco Burzi PHP-Nuke 8.0 and earlier allow remote attackers to hijack the authentication of administrators for requests that (1) add user accounts or (2) grant the administrative privilege to a user account, related to a Referer check that uses a substring comparison.

Francisco Burzi PHP-Nuke 8.0 allows remote attackers to obtain sensitive information via a direct request to a .php file, which reveals the installation path in an error message, as demonstrated by themes/Odyssey/theme.php and certain other files.

Multiple cross-site scripting (XSS) vulnerabilities in Francisco Burzi PHP-Nuke 8.0 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) sendername or (2) senderemail parameter in a Feedback action to modules.php.