Description
An unrestricted file upload vulnerability exists in Simple E-Document versions 3.0 to 3.1 that allows an unauthenticated attacker to bypass authentication by sending a specific cookie header (access=3) with HTTP requests. The application’s upload mechanism fails to restrict file types and does not validate or sanitize user-supplied input, allowing attackers to upload malicious .php scripts. Authentication can be bypassed entirely by supplying a specially crafted cookie (access=3), granting access to the upload functionality without valid credentials. If file uploads are enabled on the server, the attacker can upload a web shell and gain remote code execution with the privileges of the web server user, potentially leading to full system compromise.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Simple E-Document | Simple E-Document | 3.0 – ≤ 3.1 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Metasploit 1 module
-
Simple E-Document Arbitrary File Upload
exploit/unix/webapp/simple_e_document_upload_exec
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/simple_e_document_upload_exec.rb exploit
- https://www.exploit-db.com/exploits/31264 exploit
- https://sourceforge.net/projects/simplee-doc/ product
- https://www.vulncheck.com/advisories/simple-edocument-abitrary-file-upload-rce third-party-advisory