Skip to content
OpenAdvisories
Critical · 9.3 Public exploit CVE-2025-34100 EUVD-2025-21028GHSA-q4px-f6mf-p9w2

BuilderEngine 3.5.0 RCE via Unauthenticated Arbitrary File Upload

Published Jul 10, 2025 · Updated Apr 7, 2026 · Assigned by VulnCheck

Vendor: BuilderEngine Product: CMS

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.

Affected products

VendorProductAffectedFixed
BuilderEngine CMS 3.5.0 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Metasploit 1 module

GitHub 2 repositories

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

References