This Metasploit module exploits an arbitrary file upload vulnerability in HorizontCMS 1.0.0-beta in order to execute arbitrary commands. The module first attempts to authenticate to HorizontCMS. It then tries to upload a malicious PHP file via an HTTP POST request to /admin/file-manager/fileupload. The server will rename this file to a random string. The module will therefore attempt to change the filename back to the original name via an HTTP POST request to /admin/file-manager/rename. For the php target, the payload is embedded in the uploaded file and the module attempts to execute the payload via an HTTP GET request to /storage/file_name.

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