{"id":"CVE-2026-114389","published":"2026-10-21T13:18:29.227","lastModified":"2026-10-22T17:40:46.877","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.","cvssScore":4.3,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cwes":["CWE-639"],"vendors":[],"products":[],"references":[{"url":"https://github.com/chamilo/chamilo-lms/blob/v2.0.0-RC.2/src/CoreBundle/Controller/AiController.php#L525-L703","tags":[]},{"url":"https://github.com/chamilo/chamilo-lms/commit/2861afd4896ff898a950302f2c00f44726fa6f0a","tags":[]},{"url":"https://github.com/chamilo/chamilo-lms/issues/7671","tags":[]},{"url":"https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.0-RC.3","tags":[]},{"url":"https://www.vulncheck.com/advisories/chamilo-lms-2.0.0-alpha.4-before-2.0.0-rc.3-missing-authorization-via-openanswergrade","tags":[]}],"exploitRefs":[{"url":"https://github.com/chamilo/chamilo-lms/blob/v2.0.0-RC.2/src/CoreBundle/Controller/AiController.php#L525-L703","tags":[]},{"url":"https://github.com/chamilo/chamilo-lms/commit/2861afd4896ff898a950302f2c00f44726fa6f0a","tags":[]},{"url":"https://github.com/chamilo/chamilo-lms/issues/7671","tags":[]},{"url":"https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.0-RC.3","tags":[]}],"hasPoc":true,"ai":null}