WordPress File Upload <= 2.7.6 - Multiple Vulnerabilities

The plugin allows upload of file extensions that may lead to code execution, such as php4 or php5. Additionally, it allows an admin user to rename files and thus change the extension of uploaded files, leading to code execution. There is no CSRF protection for this. The plugin also allows for the download of arbitrary files by an admin. There are also a couple of XSS vulnerabilities.