CVE-2026-114389

EUVD-2026-107236
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
References
https://github.com/chamilo/chamilo-lms/blob/v2.0.0-RC.2/src/CoreBundle/Controller/AiController.php#L525-L703
https://github.com/chamilo/chamilo-lms/commit/2861afd4896ff898a950302f2c00f44726fa6f0a
https://github.com/chamilo/chamilo-lms/issues/7671
https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.0-RC.3
https://www.vulncheck.com/advisories/chamilo-lms-2.0.0-alpha.4-before-2.0.0-rc.3-missing-authorization-via-openanswergrade