CVE-2023-3533
9.8
CRITICAL · CVSS 3.1 · EPSS 3.5% (pctl 89)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 3.5% — more likely to be exploited than 89% of all CVEs |
| Weakness | CWE-22 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2023-11-28 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| chamilo | chamilo |
References
- https://github.com/chamilo/chamilo-lms/commit/37be9ce7243a30259047dd4517c48ff8b21d657a
- https://starlabs.sg/advisories/23/23-3533/
- 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
- https://github.com/chamilo/chamilo-lms/commit/37be9ce7243a30259047dd4517c48ff8b21d657a
- https://starlabs.sg/advisories/23/23-3533/
- 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
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