RCE in Chamilo Chamilo-Lms
CVE-2026-30875
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.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (57.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.009 · change: +0.004
Affected products
- Chamilo Chamilo-Lms — versions < 1.11.36
- Chamilo Lms
Weakness classification (CWE)
References
- github.com/chamilo/chamilo-lms/security/advisories/GHSA-mj4f-8fw2-hrfm (Vendor Advisory)
- github.com/chamilo/chamilo-lms/releases/tag/v1.11.36 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-30875?
- CVE-2026-30875 is a high-severity vulnerability in Chamilo Chamilo-Lms, classified under Code Injection. CVSS score: 8.8/10. Published 2026-03-16.
- How severe is CVE-2026-30875?
- High severity. CVSS v3 base score is 8.8 out of 10.