{"id":"CVE-2023-3533","aliases":["EUVD-2023-44189","GHSA-28gg-m25v-q74w"],"status":"published","title":"Chamilo LMS Unauthenticated Remote Code Execution via Arbitrary File Write","description":"Path traversal in file upload functionality in `/main/webservices/additional_webservices.php` in Chamilo LMS \u003c= v1.11.20 allows unauthenticated attackers to perform stored cross-site scripting attacks and obtain remote code execution via arbitrary file write.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.03496,"percentile":0.89241,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-22"],"published":"2023-11-28T07:06:43Z","modified":"2026-10-28T02:30:54Z","products":[{"vendor":"chamilo","product":"chamilo"}],"references":[{"url":"https://support.chamilo.org/projects/chamilo-18/wiki/security_issues#Issue-124-2023-07-13-Critical-impact-High-risk-Unauthenticated-Arbitrary-File-Write-RCE-CVE-2023-3533","tags":["vendor-advisory","x_transferred","Issue Tracking","Patch","Vendor Advisory","advisory"]},{"url":"https://starlabs.sg/advisories/23/23-3533/","tags":["third-party-advisory","x_transferred","Exploit","Third Party Advisory","advisory"]},{"url":"https://github.com/chamilo/chamilo-lms/commit/37be9ce7243a30259047dd4517c48ff8b21d657a","tags":["patch","x_transferred","Patch","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3533","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-28gg-m25v-q74w"},{"url":"https://github.com/chamilo/chamilo-lms/","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/3xxx/CVE-2023-3533.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-3533","title":"Chamilo LMS Unauthenticated Remote Code Execution via Arbitrary File Write","description":"Path traversal in file upload functionality in `/main/webservices/additional_webservices.php` in Chamilo LMS \u003c= v1.11.20 allows unauthenticated attackers to perform stored cross-site scripting attacks and obtain remote code execution via arbitrary file write.","status":"published","published":"2023-11-28T07:06:43.738Z","modified":"2024-08-02T06:55:03.594Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:35:24.707957Z"}],"euvd":[{"id":"EUVD-2023-44189","description":"Path traversal in file upload functionality in `/main/webservices/additional_webservices.php` in Chamilo LMS \u003c= v1.11.20 allows unauthenticated attackers to perform stored cross-site scripting attacks and obtain remote code execution via arbitrary file write.","status":"published","published":"2023-11-28T07:06:43Z","modified":"2024-08-02T06:55:03Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T03:50:13.100319Z"}],"ghsa":[{"id":"GHSA-28gg-m25v-q74w","title":"Path traversal in file upload functionality in `/main/webservices/additional_webservices.php` in...","description":"Path traversal in file upload functionality in `/main/webservices/additional_webservices.php` in Chamilo LMS \u003c= v1.11.20 allows unauthenticated attackers to perform stored cross-site scripting attacks and obtain remote code execution via arbitrary file write.","status":"published","published":"2023-11-28T09:30:26Z","modified":"2023-11-28T09:30:26Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:55:06.860566Z"}],"nvd":[{"id":"CVE-2023-3533","description":"Path traversal in file upload functionality in `/main/webservices/additional_webservices.php` in Chamilo LMS \u003c= v1.11.20 allows unauthenticated attackers to perform stored cross-site scripting attacks and obtain remote code execution via arbitrary file write.","status":"published","published":"2023-11-28T07:15:42.377Z","modified":"2026-06-17T06:14:17.523Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:08:49.393375Z"}],"osv":[{"id":"CVE-2023-3533","title":"Chamilo LMS Unauthenticated Remote Code Execution via Arbitrary File Write","description":"Path traversal in file upload functionality in `/main/webservices/additional_webservices.php` in Chamilo LMS \u003c= v1.11.20 allows unauthenticated attackers to perform stored cross-site scripting attacks and obtain remote code execution via arbitrary file write.","status":"published","published":"2023-11-28T07:06:43.738Z","modified":"2026-10-28T02:30:54.64146492Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:44:32.510144Z"}]}}