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CVE-2025-34100— BuilderEngine 3.5.0 RCE via Unauthenticated Arbitrary File Upload

Quick assessment

Affected
BuilderEngine CMS
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.

BuilderEngine是BuilderEngine公司的一款网络构建工具。 BuilderEngine 3.5.0版本存在安全漏洞，该漏洞源于elFinder 2.0文件管理器中的文件上传问题，可能导致远程代码执行。

AI Predicted 9.8 Difficulty: Easy EPSS 2.31% · P82

Public Exploits 1

Metasploit · 1 builderengine_upload_exec.rb [exploit]
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I. Basic Information for CVE-2025-34100

Vulnerability Information
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Vulnerability Title
BuilderEngine 3.5.0 RCE via Unauthenticated Arbitrary File Upload
Source: CVE Program / CVE List V5
Vulnerability Description
An unrestricted file upload vulnerability exists in BuilderEngine 3.5.0 via the integration of the elFinder 2.0 file manager and its use of the jQuery File Upload plugin. The plugin fails to properly validate or restrict file types or locations during upload operations, allowing an attacker to upload a malicious .php file and subsequently execute arbitrary PHP code on the server under the context of the web server process. While the root vulnerability lies within the jQuery File Upload component, BuilderEngine’s improper integration and lack of access controls expose this functionality to unauthenticated users, resulting in full remote code execution.
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:N/SI:N/SA:N
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
BuilderEngine 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BuilderEngine是BuilderEngine公司的一款网络构建工具。 BuilderEngine 3.5.0版本存在安全漏洞，该漏洞源于elFinder 2.0文件管理器中的文件上传问题，可能导致远程代码执行。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
BuilderEngine CMS 3.5.0 -

II. Public POCs for CVE-2025-34100

# POC Description Source Link Shenlong Link
1 Demo web server https://github.com/RyanJohnJames/CVE-2025-34100-demo POC Details
2 CVE-2025-34100 test https://github.com/hyeonyeonglee/CVE-2025-34100 POC Details
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III. Intelligence Information for CVE-2025-34100

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IV. Related Vulnerabilities

Same product: CMS
Same weakness: CWE-434

V. Comments for CVE-2025-34100

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