CVE-2026-114389: Authorization Bypass Through User-Controlled Key in chamilo chamilo-lms
Description
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.
CVSS v4.0
Score 5.3medium
Affected software
chamilo
chamilo-lms
pkg:github/chamilo-lmsRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-21T11:46:41.284Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad8b86a2cdf04f656f0ca56
Added to database: 10/21/2026, 13:04:42 UTC
Last updated: 10/21/2026, 13:04:42 UTC
Views: 2
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