Vulnerability in Document Upload Handler of Fengoffice Feng Office
CVE-2025-5877

5.3MEDIUM

Key Information:

Vendor

Fengoffice

Status
Feng Office
Vendor
CVE Published:
9 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-5877?

A vulnerability exists in the Document Upload Handler of Fengoffice Feng Office 3.2.2.1 due to improper handling in the ApplicationDataObject.class.php file. This issue allows for XML external entity references, which can be exploited remotely. The details of the vulnerability have been made public, and users are advised to take appropriate measures to mitigate potential risks. The vendor has been informed about the issue but has not provided a response.

Affected Version(s)

Feng Office 3.2.2.1

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-2025-5877 - Proof of Concept

References

https://vuldb.com/?id.311636
vdb-entry
https://vuldb.com/?ctiid.311636
signaturepermissions-required
https://vuldb.com/?submit.586971
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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

Credit

mcdruid (VulDB User)
.
CVE-2025-5877 : Vulnerability in Document Upload Handler of Fengoffice Feng Office