{"id":"CVE-2023-4223","aliases":["EUVD-2023-54096","GHSA-73v5-4v68-mjjx"],"status":"published","title":"Chamilo LMS File Upload Functionality Remote Code Execution","description":"Unrestricted file upload in `/main/inc/ajax/document.ajax.php` in Chamilo LMS \u003c= v1.11.24 allows authenticated attackers with learner role to obtain remote code execution via uploading of PHP files.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.0183,"percentile":0.79016,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2023-11-28T07:18:16Z","modified":"2026-10-28T02:30:21Z","products":[{"vendor":"chamilo","product":"chamilo"},{"vendor":"chamilo","product":"chamilo_lms"}],"references":[{"url":"https://support.chamilo.org/projects/chamilo-18/wiki/security_issues#Issue-129-2023-09-04-Critical-impact-Moderate-risk-Authenticated-users-may-gain-unauthenticated-RCE-CVE-2023-4223CVE-2023-4224CVE-2023-4225CVE-2023-4226","tags":["vendor-advisory","x_transferred","Issue Tracking","Vendor Advisory","advisory"]},{"url":"https://starlabs.sg/advisories/23/23-4223","tags":["third-party-advisory","x_transferred","Exploit","Third Party Advisory","advisory"]},{"url":"https://github.com/chamilo/chamilo-lms/commit/6f32625a012d5de2dfe8edbccb4ed14a85e310d4","tags":["patch","x_transferred","Patch","fix"]},{"url":"https://github.com/chamilo/chamilo-lms/commit/3d74fb7d99bd2e287730552f7a66562417a55047","tags":["patch","x_transferred","Patch","fix"]},{"url":"https://github.com/chamilo/chamilo-lms/commit/e864127a440c2cab0eb62c113a04e2e904543a1f","tags":["patch","x_transferred","Patch","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-4223","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-73v5-4v68-mjjx"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4223.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-4223","title":"Chamilo LMS File Upload Functionality Remote Code Execution","description":"Unrestricted file upload in `/main/inc/ajax/document.ajax.php` in Chamilo LMS \u003c= v1.11.24 allows authenticated attackers with learner role to obtain remote code execution via uploading of PHP files.","status":"published","published":"2023-11-28T07:18:16.724Z","modified":"2024-12-02T19:31:06.802Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:35:30.474787Z"}],"euvd":[{"id":"EUVD-2023-54096","description":"Unrestricted file upload in `/main/inc/ajax/document.ajax.php` in Chamilo LMS \u003c= v1.11.24 allows authenticated attackers with learner role to obtain remote code execution via uploading of PHP files.","status":"published","published":"2023-11-28T07:18:16Z","modified":"2024-12-02T19:31:06Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:04:43.613884Z"}],"ghsa":[{"id":"GHSA-73v5-4v68-mjjx","title":"Unrestricted file upload in `/main/inc/ajax/document.ajax.php` in Chamilo LMS \u003c= v1.11.24 allows...","description":"Unrestricted file upload in `/main/inc/ajax/document.ajax.php` in Chamilo LMS \u003c= v1.11.24 allows authenticated attackers with learner role to obtain remote code execution via uploading of PHP files.","status":"published","published":"2023-11-28T09:30:26Z","modified":"2023-11-28T09:30:32Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:55:06.860566Z"}],"nvd":[{"id":"CVE-2023-4223","description":"Unrestricted file upload in `/main/inc/ajax/document.ajax.php` in Chamilo LMS \u003c= v1.11.24 allows authenticated attackers with learner role to obtain remote code execution via uploading of PHP files.","status":"published","published":"2023-11-28T08:15:08.803Z","modified":"2026-06-17T06:37:21.12Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:08:49.393375Z"}],"osv":[{"id":"CVE-2023-4223","title":"Chamilo LMS File Upload Functionality Remote Code Execution","description":"Unrestricted file upload in `/main/inc/ajax/document.ajax.php` in Chamilo LMS \u003c= v1.11.24 allows authenticated attackers with learner role to obtain remote code execution via uploading of PHP files.","status":"published","published":"2023-11-28T07:18:16.724Z","modified":"2026-10-28T02:30:21.884245986Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T15:44:33.792101Z"}]}}