{"id":"CVE-2023-4220","state":"PUBLISHED","title":"Chamilo LMS Unauthenticated Big Upload File Remote Code Execution","description":"Unrestricted file upload in big file upload functionality in `/main/inc/lib/javascript/bigupload/inc/bigUpload.php` in Chamilo LMS <= v1.11.24 allows unauthenticated attackers to perform stored cross-site scripting attacks and obtain remote code execution via uploading of web shell.","publishedAt":"2023-11-28T07:11:47.830Z","updatedAt":"2024-08-02T07:17:12.155Z","severity":{"score":8.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"STAR_Labs"},"assigner":"STAR_Labs","products":["Chamilo Chamilo"],"affected":[{"vendor":"Chamilo","product":"Chamilo","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.11.24","versionType":"semver"}]}],"references":["https://support.chamilo.org/projects/chamilo-18/wiki/security_issues#Issue-130-2023-09-04-Critical-impact-High-risk-Unauthenticated-users-may-gain-XSS-and-unauthenticated-RCE-CVE-2023-4220","https://starlabs.sg/advisories/23/23-4220","https://github.com/chamilo/chamilo-lms/commit/3b487a55076fb06f96809b790a35dcdd42f8ec49"],"weaknesses":["CWE-434"],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/4xxx/CVE-2023-4220.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-4220","state":"PUBLISHED","datePublished":"2023-11-28T07:11:47.830Z","dateUpdated":"2024-08-02T07:17:12.155Z","assignerShortName":"STAR_Labs","assignerOrgId":"b1571b85-cbc9-431f-830b-0c8155323a69","dateReserved":"2023-08-08T06:52:24.707Z"},"containers":{"cna":{"title":"Chamilo LMS Unauthenticated Big Upload File Remote Code Execution","descriptions":[{"lang":"en","value":"Unrestricted file upload in big file upload functionality in `/main/inc/lib/javascript/bigupload/inc/bigUpload.php` in Chamilo LMS <= v1.11.24 allows unauthenticated attackers to perform stored cross-site scripting attacks and obtain remote code execution via uploading of web shell."}],"affected":[{"vendor":"Chamilo","product":"Chamilo","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.11.24","versionType":"semver"}]}],"references":[{"url":"https://support.chamilo.org/projects/chamilo-18/wiki/security_issues#Issue-130-2023-09-04-Critical-impact-High-risk-Unauthenticated-users-may-gain-XSS-and-unauthenticated-RCE-CVE-2023-4220","tags":["vendor-advisory"]},{"url":"https://starlabs.sg/advisories/23/23-4220","tags":["third-party-advisory"]},{"url":"https://github.com/chamilo/chamilo-lms/commit/3b487a55076fb06f96809b790a35dcdd42f8ec49","tags":["patch"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-434","description":"CWE-434 Unrestricted Upload of File with Dangerous Type","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"STAR_Labs","orgId":"b1571b85-cbc9-431f-830b-0c8155323a69","dateUpdated":"2023-11-28T07:11:47.830Z"},"credits":[{"lang":"en","type":"finder","user":"00000000-0000-4000-9000-000000000000","value":"Ngo Wei Lin (@Creastery) of STAR Labs SG Pte. Ltd. (@starlabs_sg)"}],"impacts":[{"capecId":"CAPEC-650","descriptions":[{"lang":"en","value":"CAPEC-650 Upload a Web Shell to a Web Server"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://support.chamilo.org/projects/chamilo-18/wiki/security_issues#Issue-130-2023-09-04-Critical-impact-High-risk-Unauthenticated-users-may-gain-XSS-and-unauthenticated-RCE-CVE-2023-4220","tags":["vendor-advisory","x_transferred"]},{"url":"https://starlabs.sg/advisories/23/23-4220","tags":["third-party-advisory","x_transferred"]},{"url":"https://github.com/chamilo/chamilo-lms/commit/3b487a55076fb06f96809b790a35dcdd42f8ec49","tags":["patch","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T07:17:12.155Z"}}]}}}