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CVE-2025-4258— zhangyanbo2007 youkefu MediaController.java upload unrestricted upload

Quick assessment

Affected
zhangyanbo2007 youkefu
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.

youkefu是zhangyanbo2007个人开发者的一个客服支持应用程序。 youkefu 4.2.0及之前版本存在代码问题漏洞，该漏洞源于文件youkefu-mastersrcmainjavacomukefuwebimwebhandler esourceMediaController.java中参数imgFile处理不当，可能导致任意文件上传。

CVSS 6.3 · Medium EPSS 0.41% · P35

Possible ATT&CK Techniques 1 AI

T1505.003 · Web Shell
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I. Basic Information for CVE-2025-4258

Vulnerability Information
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Vulnerability Title
zhangyanbo2007 youkefu MediaController.java upload unrestricted upload
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability, which was classified as critical, was found in zhangyanbo2007 youkefu up to 4.2.0. Affected is the function Upload of the file \youkefu-master\src\main\java\com\ukefu\webim\web\handler\resource\MediaController.java. The manipulation of the argument imgFile leads to unrestricted upload. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
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
youkefu 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
youkefu是zhangyanbo2007个人开发者的一个客服支持应用程序。 youkefu 4.2.0及之前版本存在代码问题漏洞，该漏洞源于文件youkefu-mastersrcmainjavacomukefuwebimwebhandler esourceMediaController.java中参数imgFile处理不当，可能导致任意文件上传。
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

Vendor Product Affected Versions CPE Subscribe
zhangyanbo2007 youkefu 4.0 -

II. Public POCs for CVE-2025-4258

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III. Intelligence Information for CVE-2025-4258

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Other References for CVE-2025-4258 (1)

IV. Related Vulnerabilities

Same product: youkefu
Same vendor: zhangyanbo2007
Same weakness: CWE-434

V. Comments for CVE-2025-4258

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