CVE-2025-34046

Fanwei E-Office Unauthenticated File Upload

Severity Score

10.0

*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

An unauthenticated file upload vulnerability exists in the Fanwei E-Office <= v9.4 web management interface. The vulnerability affects the /general/index/UploadFile.php endpoint, which improperly validates uploaded files when invoked with certain parameters (uploadType=eoffice_logo or uploadType=theme). An attacker can exploit this flaw by sending a crafted HTTP POST request to upload arbitrary files without requiring authentication. Successful exploitation could enable remote code execution on the affected server, leading to complete compromise of the web application and potentially the underlying system.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

None

User Interaction

None

System

Vulnerable | Subsequent

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

Poc

Automatable

Yes

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2025-04-15 CVE Reserved
2025-06-26 CVE Published
2025-06-26 CVE Updated
2025-06-26 First Exploit
2025-06-27 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-94: Improper Control of Generation of Code ('Code Injection')
CWE-434: Unrestricted Upload of File with Dangerous Type

CAPEC

CAPEC-242: Code Injection

References (4)

URL	Tag	Source
https://vulncheck.com/advisories/fanwei-eoffice-file-upload	Third Party Advisory
https://www.cnvd.org.cn/flaw/show/CNVD-2021-49104	Third Party Advisory

URL	Date	SRC
https://github.com/M0ge/CNVD-2021-49104-Fanwei-Eoffice-fileupload/blob/main/eoffice_fileupload.py	2025-06-26
https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cnvd/2021/CNVD-2021-49104.yaml	2025-06-26

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Shanghai Fanwei Network Technology Search vendor "Shanghai Fanwei Network Technology"		E-Office Search vendor "Shanghai Fanwei Network Technology" for product "E-Office"				<= 9.4 Search vendor "Shanghai Fanwei Network Technology" for product "E-Office" and version " <= 9.4"		en		Affected