Chamilo LMS: Authenticated RCE via H5P Import

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.

Scores

EPSS (exploitation in 30 days)

0.55% · top 54% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.

Weakness

• CWE-94: Improper Control of Generation of Code ('Code Injection') (opens in a new tab)All about CWE-94 and its CVEs

Affected products

• chamilo · chamilo-lms

  • affected < 1.11.36

References (2)

• https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-mj4f-8fw2-hrfm (opens in a new tab)x_refsource_CONFIRM
• https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.36 (opens in a new tab)x_refsource_MISC

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-30875](https://trackcve.app/badge/CVE-2026-30875.svg)](https://trackcve.app/cve/CVE-2026-30875)

Record last updated 16 Mar 2026, 20:22 UTC.