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XODA contains a flaw that allows a remote user to execute arbitrary PHP code. This flaw exists because the program does not properly restrict access to the file upload page, ?upload_to=. By uploading a .php file, the remote system will place the file in a user-accessible path (/xodadir/files/). Making a direct request to the uploaded file will allow the user to execute the script with the privileges of the web server.
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