{"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","slug":"CVE-2026-114389","body":"## Overview\n\nChamilo 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.\n\n## Affected\n\n- `chamilo-lms >= 2.0.0-alpha.4 < 2.0.0-RC.3`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}