Chamilo Learning Management System: Unsecured File Uploads Allow Code Execution

Summary

If you use an older version of Chamilo, a hacker can upload a malicious file and execute commands on your server if they have a user account. To fix this, update Chamilo to version 1.11.34 or later. If you can't update right away, consider temporarily blocking file uploads until the update is possible.

What to do

No fix is available yet. Check with your software vendor for updates.

Affected software

Vendor	Product	Affected versions	Fix available
chamilo	chamilo_lms	<= 1.11.34	–

Original title

Chamilo is a learning management system. Prior to version 1.11.34, Chamilo LMS is affected by an authenticated remote code execution vulnerability caused by improper validation of uploaded files. T...

Original description

Chamilo is a learning management system. Prior to version 1.11.34, Chamilo LMS is affected by an authenticated remote code execution vulnerability caused by improper validation of uploaded files. The application relies solely on MIME-type verification when handling file uploads and does not adequately validate file extensions or enforce safe server-side storage restrictions. As a result, an authenticated low-privileged user can upload a crafted file containing executable code and subsequently execute arbitrary commands on the server. This issue has been patched in version 1.11.34.

nvd CVSS3.1 8.8

Vulnerability type

CWE-434 Unrestricted File Upload