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TI-2023-03309 Aliases CVE-2023-3545GHSA-qrrc-369r-8grr

Chamilo LMS Htaccess File Upload Security Bypass

Priority MEDIUM 47CWE-178Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Improper sanitisation in `main/inc/lib/fileUpload.lib.php` in Chamilo LMS <= v1.11.20 on Windows and Apache installations allows unauthenticated attackers to bypass file upload security protections and obtain remote code execution via uploading of `.htaccess` file. This vulnerability may be exploited by privileged attackers or chained with unauthenticated arbitrary file write vulnerabilities, such as CVE-2023-3533, to achieve remote code execution.

Why it matters now

EPSS 0.02438 84th 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 1.11.20—No fix listedCNA
  • Chamilo Vendorchamilo Affected up to 1.11.20 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:chamilo:chamilo:*:*:*:*:*:*:*:*up to 1.11.20Vulnerablechamilo
  • cpe:2.3:a:chamilo:chamilo:*:*:*:*:*:*:*:* Versions up to 1.11.20 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-2023-03907 Chamilo LMS Unauthenticated Big Upload File Remote Code ExecutionPriority HIGH 74
    • TI-2023-03910 Chamilo LMS File Upload Functionality Remote Code ExecutionPriority HIGH 73
    Show all 10 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-3545
  2. 2026-10-03 Alias added: GHSA-qrrc-369r-8grr

References

Exploit 1

Patch 1

Advisory 1

  • TI-2023-17452 A command injection vulnerability in the wsConvertPpt component of Chamilo v1.11.* up to… CVSS 3.1CRITICAL 9.8
  • TI-2023-03150 Chamilo LMS Unauthenticated Command Injection CVSS 3.1CRITICAL 9.8
  • TI-2022-19180 A zip slip vulnerability in the file upload function of Chamilo v1.11 allows attackers to… CVSS 3.1HIGH 8.8
  • TI-2021-13304 main/inc/ajax/model.ajax.php in Chamilo through 1.11.14 allows SQL Injection via the… CVSS 3.1CRITICAL 9.8
  • TI-2023-03297 Chamilo LMS Unauthenticated Remote Code Execution via Arbitrary File Write CVSS 3.1CRITICAL 9.8
  • TI-2021-11920 A remote code execution vulnerability exists in Chamilo through 1.11.14 due to improper… CVSS 3.1HIGH 7.2
See all 25 →

Sources

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