{"id":"GHSA-g4c3-4g96-6g4m","aliases":["CVE-2026-45140"],"title":"Chamilo LMS CStudio upload flow allows unauthenticated remote code execution","titleSource":"OSV","descriptionSource":"OSV","declaredSeverity":"CRITICAL","description":"### Impact\nAbility to run arbitrary code on the server without authentication.","severity":"critical","score":9.8,"published":"2026-09-17T20:23:39.000Z","modified":"2026-09-17T20:45:05.328Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"chamilo/chamilo-lms","sources":[{"name":"OSV · GHSA-g4c3-4g96-6g4m","url":"https://osv.dev/vulnerability/GHSA-g4c3-4g96-6g4m"}],"ranges":[{"events":[{"introduced":"0"},{"fixed":"2.0.1"}],"type":"ECOSYSTEM"}],"versions":[],"fixed":["2.0.1"]}],"sourceAffected":[],"references":["https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-g4c3-4g96-6g4m","https://github.com/chamilo/chamilo-lms/commit/4bdba1b9a8820bd70c0809317775d7f6eaa79844","https://github.com/chamilo/chamilo-lms","https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.1"],"sources":[{"name":"OSV","id":"GHSA-g4c3-4g96-6g4m","modified":"2026-09-17T20:45:05.328230281Z","url":"https://osv.dev/vulnerability/GHSA-g4c3-4g96-6g4m"}],"assessments":[{"source":"OSV","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8}],"products":[],"remediation":[],"kev":{"status":"unavailable","checkedAt":"2026-10-28T11:55:31.891Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}