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CVE-2025-7783— Usage of unsafe random function in form-data for choosing boundary

Quick assessment

Affected
CVE-2025-7783
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Form-Data是FormData开源的一个用于创建可读的表单数据流的模块。可用于向其他web应用程序提交表单和文件上传。 form-data 2.5.4之前版本、3.0.0至3.0.3版本和4.0.0至4.0.3版本存在安全漏洞，该漏洞源于随机性不足，可能导致HTTP参数污染攻击。

AI Predicted 6.5 Difficulty: Easy EPSS 1.91% · P79

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

I. Basic Information for CVE-2025-7783

Vulnerability Information
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Vulnerability Title
Usage of unsafe random function in form-data for choosing boundary
Source: CVE Program / CVE List V5
Vulnerability Description
Use of Insufficiently Random Values vulnerability in form-data allows HTTP Parameter Pollution (HPP). This vulnerability is associated with program files lib/form_data.Js. This issue affects form-data: < 2.5.4, 3.0.0 - 3.0.3, 4.0.0 - 4.0.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用不充分的随机数
Source: CVE Program / CVE List V5
Vulnerability Title
form-data 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Form-Data是FormData开源的一个用于创建可读的表单数据流的模块。可用于向其他web应用程序提交表单和文件上传。 form-data 2.5.4之前版本、3.0.0至3.0.3版本和4.0.0至4.0.3版本存在安全漏洞，该漏洞源于随机性不足，可能导致HTTP参数污染攻击。
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)

II. Public POCs for CVE-2025-7783

# POC Description Source Link Shenlong Link
1 POC of CVE-2025-7783 https://github.com/benweissmann/CVE-2025-7783-poc POC Details
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III. Intelligence Information for CVE-2025-7783

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Patches & Fixes for CVE-2025-7783 (1)

IV. Related Vulnerabilities

Same weakness: CWE-330

V. Comments for CVE-2025-7783

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