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TI-2023-03907 Aliases CVE-2023-4220GHSA-9wc2-3gq5-2f4c

Chamilo LMS Unauthenticated Big Upload File Remote Code Execution

Priority HIGH 74CWE-434Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Code execution, Cross-site scripting
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-434 and CWE-79.

Summary

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.

Why it matters now

EPSS 0.76084 99th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
chamiloChamiloup to 1.11.24—No fix listedCNA
  • Chamilo Vendorchamilo Affected up to 1.11.24 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:chamilo:chamilo_lms:*:*:*:*:*:*:*:*up to 1.11.24Vulnerablechamilo
  • cpe:2.3:a:chamilo:chamilo_lms:*:*:*:*:*:*:*:* Versions up to 1.11.24 Vulnerable ·chamilo

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Chamilo — support.chamilo.org/projects/chamilo-18/wiki/security_issues

    10 records Highest priority Priority CRITICAL 1 CRITICAL, 2 HIGH, 7 MEDIUM

    Other records, highest priority first

    • TI-2023-03150 Chamilo LMS Unauthenticated Command InjectionPriority CRITICAL 86
    • TI-2023-03910 Chamilo LMS File Upload Functionality Remote Code ExecutionPriority HIGH 73
    • TI-2023-03912 Chamilo LMS File Upload Functionality Remote Code ExecutionPriority MEDIUM 48
    Show all 10 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-4220
  2. 2026-10-03 Alias added: GHSA-9wc2-3gq5-2f4c

References

Exploit 1

Patch 1

Advisory 1

  • TI-2025-32070 Chamilo: Evaluation of untrusted user input leads to Remote Code Execution CVSS 3.1CRITICAL 9.8
  • TI-2025-32081 Deserialization of untrusted data in chamilo-lms CVSS 4.0HIGH 8.8
  • TI-2024-32140 Chamilo: Post-Auth Remote Code Execution CVSS 4.0HIGH 8.7
  • TI-2025-32595 Chamilo: Stored XSS Vulnerability via CSV User Import CVSS 3.1HIGH 8.8
  • TI-2024-20321 Chamilo LMS 1.11.26 is vulnerable to Incorrect Access Control via main/auth/profile. CVSS 3.1HIGH 8.8
  • TI-2023-03910 Chamilo LMS File Upload Functionality Remote Code Execution CVSS 3.1HIGH 8.8
See all 121 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences