Unrestricted Upload of File with Dangerous Type
The One Click Demo Import WordPress plugin before 3.1.0 does not validate the imported file, allowing high privilege users such as admin to upload arbitrary files (such as PHP) even when FILE_MODS and FILE_EDIT are disallowed
CWE-434 - Unrestricted Upload of File with dangerous type
'Unrestricted file upload with dangerous type' attacks involve an attacker uploading or transferring files of dangerous types to the server. The severity of such an attack depends upon the execution mechanism and the storage location of the uploaded file. Thus, it may range from simple defacement to arbitrary file execution, and complete system takeover.