CVE-2025-9400— YiFang CMS P_file.php mergeMultipartUpload unrestricted upload
Quick assessment
Affected
YiFang CMS
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.
Yifang CMS是中国亿坊（Yifang）公司的一个PHP企业网站开发建设管理系统。 Yifang CMS 2.0.5及之前版本存在安全漏洞，该漏洞源于文件app/utils/base/plugin/P_file.php中mergeMultipartUpload函数对File参数处理不当，可能导致无限制上传。
Possible ATT&CK Techniques 1 AI
T1505.003 · Web Shell
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I. Basic Information for CVE-2025-9400
Vulnerability Information
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Vulnerability Title
YiFang CMS P_file.php mergeMultipartUpload unrestricted upload
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw has been found in YiFang CMS up to 2.0.5. This affects the function mergeMultipartUpload of the file app/utils/base/plugin/P_file.php. This manipulation of the argument File causes unrestricted upload. Remote exploitation of the attack is possible. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
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
Yifang CMS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Yifang CMS是中国亿坊（Yifang）公司的一个PHP企业网站开发建设管理系统。 Yifang CMS 2.0.5及之前版本存在安全漏洞，该漏洞源于文件app/utils/base/plugin/P_file.php中mergeMultipartUpload函数对File参数处理不当，可能导致无限制上传。
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
II. Public POCs for CVE-2025-9400
| # | POC Description | Source Link | Shenlong Link |
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AI-Generated POC
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News Coverage for CVE-2025-9400 (1)
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V. Comments for CVE-2025-9400
Anonymous User
2025-08-25 09:40:17katana