CVE-2026-29041CWE-434

Chamilo: Authenticated Remote Code Execution via Unrestricted File Upload

High · published March 6, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
65.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01086 · 65.0th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2026-03-06T03:32Z
EPSS history
Timeline
  • 06 MAR 03:32Z
    Chamilo: Authenticated Remote Code Execution via Unrestricted File Upload
    cvelistv5