# CVE-2026-114389: Chamilo LMS missing authorization in AiController

Source: https://junglewise.ai/threats/cve-2026-114389-chamilo-lms-from-2-0-0-alpha-4-before-2-0-0-rc-3-contains-a  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-21. Updated: 2026-10-21  
License: CC BY 4.0 with a link back

CVE-2026-114389 · Severity: medium · CVSS 4.3 · Published 2026-10-21

Chamilo LMS is a learning management system used by educational institutions to deliver online courses and assessments. The platform contains a missing authorization vulnerability that allows any authenticated student to view other students' exam answers and AI-generated grading feedback. Attackers can also consume the AI grading quota of the institution by repeatedly requesting grades for other users' work.

Technologies: [Chamilo Lms](https://junglewise.ai/threats/technologies/chamilo-lms). Vendors: [Chamilo](https://junglewise.ai/threats/vendors/chamilo).

## Quick answers

**Is CVE-2026-114389 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-114389 being exploited in the wild.

**How severe is CVE-2026-114389?** Medium severity, with a CVSS score of 4.3, published 21 October 2026.

**Which products and versions are affected?** Chamilo Lms 2.0.0-alpha.4 to before 2.0.0-RC.3.

**Is there a fix for CVE-2026-114389?** Yes: fixed in 2.0.0-RC.3. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-114389 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-114389?** Check whether you run Chamilo Lms at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 2.0.0-RC.3

## Technical details

The AiController::openAnswerGrade endpoint lacks authorization checks, allowing any authenticated user to enumerate exam IDs and question IDs to access other students' answers. The vulnerability requires authentication and network access but no user interaction, and enables information disclosure and quota exhaustion through parameter manipulation.

## Affected products

- Chamilo Chamilo LMS 2.0.0-alpha.4 to before 2.0.0-RC.3

## Timeline

- 2026-10-21: disclosed

## References

- [https://github.com/chamilo/chamilo-lms/blob/v2.0.0-RC.2/src/CoreBundle/Controller/AiController.php](https://github.com/chamilo/chamilo-lms/blob/v2.0.0-RC.2/src/CoreBundle/Controller/AiController.php)
- [https://github.com/chamilo/chamilo-lms/commit/2861afd4896ff898a950302f2c00f44726fa6f0a](https://github.com/chamilo/chamilo-lms/commit/2861afd4896ff898a950302f2c00f44726fa6f0a)

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