CVE-2025-34100

CRITICAL EPSS 81.2%
Published Jul 10, 202511mo ago · Modified Jun 17, 20261w ago
9.3 CVSS 4.0
Critical
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Published Jul 10, 2025 11mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
9.3
Exploitability
—
Impact
—
Vector string
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
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
81.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 3

CWE-20 Improper Input Validation Validation
CWE-306 Missing Authentication for Critical Function Authentication
CWE-434 Unrestricted Upload of File with Dangerous Type Resource Mgmt

References 4

  • raw.githubusercontent.com https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/multi/http/builderengine_upload_exec.rb
  • support.alertlogic.com https://support.alertlogic.com/hc/en-us/articles/115004703183-BuilderEngine-Content-Management-System-CMS-elFinder-2-0-Arbitrary-File-Upload
  • vulncheck.com https://vulncheck.com/advisories/builder-engine-unauthenticated-arbitrary-file-upload
  • exploit-db.com https://www.exploit-db.com/exploits/40390

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.