This vulnerability allows remote attackers to execute arbitrary code on affected installations of Rockwell Automation Studio 5000. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the CopyRenameProject parameter provided to hmi_isapi.dll. The issue results from the lack of proper validation of user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of the current process.