CVE-2023-4226

HIGH

Chamilo LMS <= 1.11.24 - Authenticated Remote Code Execution via PHP File Upload

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2023-4226. PoCs published by SkyW4r33x, krishnan-tech.

AI-analyzed exploit summary This repository contains a functional Python exploit for CVE-2023-4226, targeting Chamilo LMS <= v1.11.24. The exploit automates the upload of a PHP web shell and .htaccess file to achieve remote code execution (RCE) via an unrestricted file upload vulnerability.

Description

Unrestricted file upload in `/main/inc/ajax/work.ajax.php` in Chamilo LMS <= v1.11.24 allows authenticated attackers with learner role to obtain remote code execution via uploading of PHP files.

Exploits (2)

nomisec WORKING POC 1 stars
by SkyW4r33x · poc
https://github.com/SkyW4r33x/CVE-2023-4226

This repository contains a functional Python exploit for CVE-2023-4226, targeting Chamilo LMS <= v1.11.24. The exploit automates the upload of a PHP web shell and .htaccess file to achieve remote code execution (RCE) via an unrestricted file upload vulnerability.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Chamilo LMS <= v1.11.24
Auth required
Prerequisites: Valid session cookie (ch_sid) · Target URL · Attacker-controlled IP and port for reverse shell
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 1 stars
by krishnan-tech · poc
https://github.com/krishnan-tech/CVE-2023-4226-POC

This repository contains a functional exploit for CVE-2023-4220, an unrestricted file upload vulnerability in Chamilo LMS. The PoC allows unauthenticated attackers to upload a malicious PHP file to achieve remote code execution (RCE) via a reverse shell or direct command execution.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: Chamilo LMS <= v1.11.24
No auth needed
Prerequisites: Network access to the target Chamilo LMS instance
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (5)

Core 5

Scores

CVSS v3 8.8
EPSS 0.0243
EPSS Percentile 82.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-434
Status published
Products (1)
chamilo/chamilo_lms < 1.11.24
Published Nov 28, 2023
Tracked Since Feb 18, 2026