CVE-2025-34046 | An unauthenticated file upload vulnerability exists in the F… | CVSS 10.0 CRITICAL

Description

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. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-05 UTC.

Metadata

CVE ID: CVE-2025-34046
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2025-04-15 19:15 UTC
Published: 2025-06-26 15:51 UTC
Last updated: 2026-07-14 22:25 UTC
Primary CWE: CWE-434
CWE-434 Unrestricted Upload of File with Dangerous Type
Vendor / Product: Shanghai Fanwei Network Technology / E-Office
Sources: cve.org · NVD

Severity & Metrics

10.0 CRITICAL CVSS 4.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
Shanghai Fanwei Network Technology	E-Office	—	0 ≤ 9.4

Weakness (CWE)

CWE	Source	Description
CWE-434	cna	CWE-434 Unrestricted Upload of File with Dangerous Type

CVSS scores (1)

Score	Severity	Version	Source	Vector
10.0	CRITICAL	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

References (4)