CVE-2026-114389
Chamilo LMS 2.0.0-alpha.4 before 2.0.0-RC.3 Missing Authorization via openAnswerGrade
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-639 |
| Vendor | chamilo |
| Product | chamilo-lms |
| Published | Oct 21, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
chamilo / chamilo-lms
2.0.0-alpha.4 < 2.0.0-RC.3
References
github.com: https://github.com/chamilo/chamilo-lms/issues/7671 github.com: https://github.com/chamilo/chamilo-lms/commit/2861afd4896ff898a950302f2c00f44726fa6f0a github.com: https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.0-RC.3 github.com: https://github.com/chamilo/chamilo-lms/blob/v2.0.0-RC.2/src/CoreBundle/Controller/AiController.php#L525-L703 vulncheck.com: https://www.vulncheck.com/advisories/chamilo-lms-2.0.0-alpha.4-before-2.0.0-rc.3-missing-authorization-via-openanswergrade
Credits
lighthousekeeper1212 🔍 leediay153 from Viettel Post