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.
PHP-Nuke 5.2 allows remote attackers to copy and delete arbitrary files by calling case.filemanager.php with admin.php as an argument, which sets the $PHP_SELF variable and makes it appear that case.filemanager.php is being called by admin.php instead of the user.
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.
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.