{"affected":[{"affectedData":[{"defaultStatus":"unaffected","product":"Chamilo","repo":"https://github.com/chamilo/chamilo-lms/","vendor":"Chamilo","versions":[{"lessThanOrEqual":"1.11.20","status":"affected","version":"0","versionType":"semver"}]}],"source":"info@starlabs.sg"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:chamilo:chamilo:*:*:*:*:*:*:*:*","matchCriteriaId":"FF883FF3-A05D-4939-9777-9FCC16A9AFBB","versionEndIncluding":"1.11.20","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"Path traversal in file upload functionality in `/main/webservices/additional_webservices.php` in Chamilo LMS <= v1.11.20 allows unauthenticated attackers to perform stored cross-site scripting attacks and obtain remote code execution via arbitrary file write."},{"lang":"es","value":"Path Traversal en la funcionalidad de carga de archivos en `/main/webservices/additional_webservices.php` en Chamilo LMS en versiones &lt;= 1.11.20 permite a atacantes no autenticados realizar ataques de Cross Site Scripting Almacenados y obtener ejecución remota de código mediante escritura de archivos arbitrarios."}],"id":"CVE-2023-3533","lastModified":"2026-06-17T06:14:17.523","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":3.9,"impactScore":5.9,"source":"info@starlabs.sg","type":"Secondary"},{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":3.9,"impactScore":5.9,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2023-11-28T07:15:42.377","references":[{"source":"info@starlabs.sg","tags":["Patch"],"url":"https://github.com/chamilo/chamilo-lms/commit/37be9ce7243a30259047dd4517c48ff8b21d657a"},{"source":"info@starlabs.sg","tags":["Exploit","Third Party Advisory"],"url":"https://starlabs.sg/advisories/23/23-3533/"},{"source":"info@starlabs.sg","tags":["Issue Tracking","Patch","Vendor Advisory"],"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"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"],"url":"https://github.com/chamilo/chamilo-lms/commit/37be9ce7243a30259047dd4517c48ff8b21d657a"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"],"url":"https://starlabs.sg/advisories/23/23-3533/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking","Patch","Vendor Advisory"],"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"}],"sourceIdentifier":"info@starlabs.sg","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-22"}],"source":"info@starlabs.sg","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-22"}],"source":"nvd@nist.gov","type":"Primary"}]}