CVE-2023-4223

Name: CVE-2023-4223
Creator: NVD / NIST
Published: 2023-11-28T08:15:08.803+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.83%

Last modified Jun 17, 2026

CVE-2023-4223 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Unrestricted file upload in `/main/inc/ajax/document.ajax.php` in Chamilo LMS <= v1.11.24 allows authenticated attackers with learner role to obtain remote code execution via uploading of PHP files.. EPSS estimates a 1.83% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.83%

76.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Chamilo	Chamilo Lms	<= 1.11.24

References

Timeline

Published: Nov 28, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-4223?

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

How severe is CVE-2023-4223?

CVE-2023-4223 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.83% probability of exploitation in the next 30 days.

How do I fix CVE-2023-4223?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-4223?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST