{"id":"CVE-2026-114389","summary":"Chamilo LMS 2.0.0-alpha.4 before 2.0.0-RC.3 Missing Authorization via openAnswerGrade","details":"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.","modified":"2026-10-22T02:48:47.521147818Z","published":"2026-10-21T12:39:45.983Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-639"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114389.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114389.json"},{"type":"PACKAGE","url":"https://github.com/chamilo/chamilo-lms"},{"type":"ARTICLE","url":"https://github.com/chamilo/chamilo-lms/blob/v2.0.0-RC.2/src/CoreBundle/Controller/AiController.php#L525-L703"},{"type":"FIX","url":"https://github.com/chamilo/chamilo-lms/commit/2861afd4896ff898a950302f2c00f44726fa6f0a"},{"type":"REPORT","url":"https://github.com/chamilo/chamilo-lms/issues/7671"},{"type":"ADVISORY","url":"https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.0-RC.3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114389"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/chamilo-lms-2.0.0-alpha.4-before-2.0.0-rc.3-missing-authorization-via-openanswergrade"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/chamilo/chamilo-lms","events":[{"introduced":"ec85677ab22d73b3f7477aa7154ede50e82a0ff2"},{"fixed":"612fdb12acbbff9f956a412d0af76e488d3419d6"},{"fixed":"2861afd4896ff898a950302f2c00f44726fa6f0a"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"2.0.0-alpha.4"},{"fixed":"2.0.0-RC.3"}],"source":"AFFECTED_FIELD","strategy":"StandardRange"},{"source":"REFERENCES_COMMIT","range":[{"fixed":"2861afd4896ff898a950302f2c00f44726fa6f0a"}]}]}}],"versions":["v2.0.0-RC.2","v2.0.0-RC.1","v2.0.0-beta.3","v2.0.0-beta.1","v2.0.0-alpha.5","v2.0.0-alpha.4"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-114389.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"}]}