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

Badges

👾 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.

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

CVE-2025-34046 - Proof of Concept

References

https://www.cnvd.org.cn/flaw/show/CNVD-2021-49104
third-party-advisory
https://github.com/M0ge/CNVD-2021-49104-Fanwei-Eoffice-fi...
exploit
https://vulncheck.com/advisories/fanwei-eoffice-file-upload
third-party-advisory

CVSS V4

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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