Unauthenticated File Upload Vulnerability in Fanwei E-Office Web Management Interface
CVE-2025-34046

10CRITICAL

Key Information:

Vendor: Shanghai Fanwei Network Technology
Status: E-office
Vendor: CVE Published:; 26 June 2025

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👾 Exploit Exists🟡 Public PoC

What is CVE-2025-34046?

A critical vulnerability exists in the Fanwei E-Office web management interface (v9.4 and earlier) that allows unauthenticated users to upload arbitrary files via the /general/index/UploadFile.php endpoint. By manipulating the 'uploadType' parameter, an attacker can exploit this flaw to upload malicious files, which may lead to remote code execution. This could compromise not only the web application but also the underlying server, exposing sensitive data and critical systems to significant risks.

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Affected Version(s)

E-Office 0 <= 9.4

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-34046 - Proof of Concept