CVSS 3.1
6.1 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NCVE-2023-4220
Medium (6.1) in chamilo chamilo lms. EPSS 76% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 76% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-79, CWE-434
- Published
- Modified
- Record from
- the NVD, synced
Affected
- chamilo:chamilo_lms
References
- https://github.com/chamilo/chamilo-lms/commit/3b487a55076fb06f96809b790a35dcdd42f8ec49
- https://starlabs.sg/advisories/23/23-4220
- 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://github.com/chamilo/chamilo-lms/commit/3b487a55076fb06f96809b790a35dcdd42f8ec49
- https://starlabs.sg/advisories/23/23-4220