CVE-2026-30875

High

Description

Chamilo LMS is a learning management system. Prior to version 1.11.36, an arbitrary file upload vulnerability in the H5P Import feature allows authenticated users with Teacher role to achieve Remote Code Execution (RCE). The H5P package validation only checks if h5p.json exists but doesn't block .htaccess or PHP files with alternative extensions. An attacker uploads a crafted H5P package containing a webshell and .htaccess that enables PHP execution for .txt files, bypassing security control. This issue has been patched in version 1.11.36.

SeverityHigh
CVSS8.8
Exploit probability46. percentile0.5%
ProductChamilo Lms
PublishedMar 16, 2026
First seenMar 16, 2026

How to fix

Update
  • chamilo chamilo_lms1.11.36 or later

Affected products

ProductAffected versionsFixed in
chamilo chamilo_lmsv < 1.11.361.11.36

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