CVE-2023-4220 Chamilo LMS Unauthenticated Big Upload File Remote Code Execution

2023-11-2807:11:47

CWE-434

STAR_Labs

www.cve.org

chamilo lms

unauthenticated

file upload

cross-site scripting

remote code execution

cve-2023-4220

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

8.4

Confidence

High

EPSS

0.026

Percentile

90.5%

JSON

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.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Chamilo",
    "vendor": "Chamilo",
    "versions": [
      {
        "lessThanOrEqual": "1.11.24",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      }
    ]
  }
]

References

github.com/chamilo/chamilo-lms/commit/3b487a55076fb06f96809b790a35dcdd42f8ec49

starlabs.sg/advisories/23/23-4220

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