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CVE-2025-34046— Fanwei E-Office Unauthenticated File Upload

Quick assessment

Affected
Shanghai Fanwei Network Technology E-Office
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Weaver E-Office是中国泛微科技（Weaver）公司的一个协同办公系统。 Weaver E-Office v9.4及之前版本存在安全漏洞，该漏洞源于对文件/general/index/UploadFile.php的错误操作导致未经验证的文件上传攻击。

AI Predicted 9.8 Difficulty: Easy EPSS 0.78% · P53

Affected Version Matrix 1

VendorProduct Version RangeStatus
Shanghai Fanwei Network Technology E-Office ≤ 9.4 affected
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I. Basic Information for CVE-2025-34046

Vulnerability Information
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Vulnerability Title
Fanwei E-Office Unauthenticated File Upload
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
Weaver E-Office 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Weaver E-Office是中国泛微科技（Weaver）公司的一个协同办公系统。 Weaver E-Office v9.4及之前版本存在安全漏洞，该漏洞源于对文件/general/index/UploadFile.php的错误操作导致未经验证的文件上传攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Shanghai Fanwei Network Technology E-Office 0 ~ 9.4 -

II. Public POCs for CVE-2025-34046

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III. Intelligence Information for CVE-2025-34046

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IV. Related Vulnerabilities

Same product: E-Office
Same weakness: CWE-434

V. Comments for CVE-2025-34046

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