How exploitable is this vulnerability in practice?

It is highly exploitable wherever Teachers (or equivalent roles) can import H5P content and the server is configured to honor `.htaccess` or similar directives in upload directories. In such environments, an attacker with a Teacher account can reliably achieve remote code execution.

Does exploitation require administrative access to Chamilo?

No. The vulnerability can be triggered by any authenticated user with at least Teacher-level permissions and access to the H5P import functionality. Higher privileges are not strictly required, although broader permissions may increase the post-exploitation impact.

What is the safest general fix pattern for developers?

The safest pattern is to treat H5P (and similar archives) as untrusted input, enforce strict allowlists on file types, explicitly reject or strip any executable or configuration files, and ensure that uploaded content is stored in non-executable directories. The upload handler should never allow user-controlled archives to introduce server-side code or web server configuration into executable paths.

Severity:

HIGH RISK

(8.8)

Arbitrary File Upload to Remote Code Execution (CWE-94) in Chamilo LMS H5P Import

CVE-2026-30875

Published:

Mar 16, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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Vulnerability Type

Category:

Arbitrary File Upload / Code Injection

CWE:

CWE-94

Impact:

Authenticated Remote Code Execution via Web Interface

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Arbitrary File Upload / Code Injection

CWE:

CWE-94

Impact:

Authenticated Remote Code Execution via Web Interface

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

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Arbitrary File Upload to Remote Code Execution (CWE-94) in Chamilo LMS H5P Import

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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