banners.php in PHP-Nuke 4.4 and earlier allows remote attackers to modify banner ad URLs by directly calling the Change operation, which does not require authentication.
HTTP Response Splitting vulnerability in the Surveys module in PHP-Nuke 7.6 allows remote attackers to spoof web content and poison web caches via hex-encoded CRLF ("%0d%0a") sequences in the forwarder parameter.
Multiple SQL injection vulnerabilities in the Downloads module for PHP-Nuke 7.6 allow remote attackers to inject arbitrary web script or HTML via (1) the email or url parameters in the Add function, (2) the min parameter in the viewsdownload function, or (3) the min parameter in the search function.
PHP-Nuke 7.0 allows remote attackers to obtain the installation path via certain characters such as (1) ", (2) ', or (3) > in the search field, which reveals the path in an error message.