---
id: CVE-2026-114389
title: >-
  Chamilo LMS 2.0.0-alpha.4 before 2.0.0-RC.3 Missing Authorization via
  openAnswerGrade
summary: >-
  Chamilo LMS from 2.0.0-alpha.4 before 2.0.0-RC.3 contains a missing
  authorization vulnerability in AiController::openAnswerGrade that allows any
  authenticated user to obtain AI grading of other students' exam attempts.
  Attackers can enum…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-639
vendor: chamilo
product: chamilo-lms
affected:
  - chamilo-lms >= 2.0.0-alpha.4 < 2.0.0-RC.3
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-21T15:00:07.696355Z'
published: '2026-10-21'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T15:48:42.424Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-114389'
references:
  - url: 'https://github.com/chamilo/chamilo-lms/issues/7671'
  - url: >-
      https://github.com/chamilo/chamilo-lms/commit/2861afd4896ff898a950302f2c00f44726fa6f0a
  - url: 'https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.0-RC.3'
    label: chamilo-lms v2.0.0-RC.3 Release Notes
  - url: >-
      https://github.com/chamilo/chamilo-lms/blob/v2.0.0-RC.2/src/CoreBundle/Controller/AiController.php#L525-L703
  - url: >-
      https://www.vulncheck.com/advisories/chamilo-lms-2.0.0-alpha.4-before-2.0.0-rc.3-missing-authorization-via-openanswergrade
    label: >-
      VulnCheck Advisory: Chamilo LMS 2.0.0-alpha.4 before 2.0.0-RC.3 Missing
      Authorization via openAnswerGrade
tags:
  - cve.org
ingestedAt: '2026-10-21T12:48:53.656Z'
---

## Overview

Chamilo LMS from 2.0.0-alpha.4 before 2.0.0-RC.3 contains a missing authorization vulnerability in AiController::openAnswerGrade that allows any authenticated user to obtain AI grading of other students' exam attempts. Attackers can enumerate exeId and questionId values sent to the open_answer_grade endpoint to expose other students' answers through feedback and consume AI quota.

## Affected

- `chamilo-lms >= 2.0.0-alpha.4 < 2.0.0-RC.3`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.