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.
AV:N/AC:L/Au:N/C:N/I:P/A:N
This vulnerability has a 1.48% probability of being exploited in the next 30 days, ranking higher than 73% of all scored CVEs.