CVE-2025-34100

CRITICAL LAB

BuilderEngine 3.5.0 - Code Injection

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 4 public exploits for CVE-2025-34100. PoCs published by metanubix, hyeonyeonglee, RyanJohnJames, including Metasploit module exploits/multi/http/builderengine_upload_exec.

AI-analyzed exploit summary This exploit demonstrates an unauthenticated file upload vulnerability in BuilderEngine 3.5.0 via elFinder 2.0, allowing remote code execution by uploading a malicious PHP file. The provided HTML form automates the upload process to the vulnerable endpoint.

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.

Exploits (4)

exploitdb WORKING POC VERIFIED
by metanubix · phpwebappsphp
https://www.exploit-db.com/exploits/40390

This exploit demonstrates an unauthenticated file upload vulnerability in BuilderEngine 3.5.0 via elFinder 2.0, allowing remote code execution by uploading a malicious PHP file. The provided HTML form automates the upload process to the vulnerable endpoint.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: BuilderEngine 3.5.0
No auth needed
Prerequisites: Access to the vulnerable endpoint · Ability to send HTTP POST requests
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec STUB
by hyeonyeonglee · poc
https://github.com/hyeonyeonglee/CVE-2025-34100

The repository contains PHP files for a CMS or e-commerce platform, but no exploit code or vulnerability details are present. The files appear to be structural or functional components of the application.

Classification
Stub 30%
Attack Type
Other
Complexity
Trivial
Reliability
Theoretical
Target: Unknown (possibly a CMS or e-commerce platform)
No auth needed
Prerequisites: None identified
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec STUB
by RyanJohnJames · poc
https://github.com/RyanJohnJames/CVE-2025-34100-demo

This repository contains PHP files for a demo web server related to CVE-2025-34100 but does not include the actual exploit code. The files serve as an entry point to exploit the vulnerability, which is located in the CMS.

Classification
Stub 80%
Attack Type
Other
Complexity
Trivial
Reliability
Theoretical
Target: BiteInstall CMS (version not specified)
No auth needed
Prerequisites: Access to the web server · Correct IP address configuration in refund.php
devstral-2 · analyzed Feb 16, 2026 Full analysis →
metasploit WORKING POC EXCELLENT
by metanubix, Marco Rivoli · rubypoc
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/builderengine_upload_exec.rb

This Metasploit module exploits an arbitrary file upload vulnerability in BuilderEngine 3.5.0 via elFinder 2.0, allowing remote code execution by uploading a malicious PHP file through the jquery-file-upload plugin.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: BuilderEngine 3.5.0
No auth needed
Prerequisites: Network access to the target web server · Vulnerable version of BuilderEngine (3.5.0) with exposed jquery-file-upload endpoint
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Scores

CVSS v4 9.3
EPSS 0.0231
EPSS Percentile 81.2%
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-20 CWE-306 CWE-434
Status published
Products (1)
BuilderEngine/CMS 3.5.0
Published Jul 10, 2025
Tracked Since Feb 18, 2026