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
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
References (4)
Scores
CVSS v4
9.3
EPSS
0.7052
EPSS Percentile
98.7%
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
Lab Environment
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