VULNERABILITY INTELLIGENCE

CVE-2023-3545

CVSS score9.8 CRITICAL
EPSS probability2.44%
CISA KEVNot currently listed
Published2023-11-28
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

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.

Weakness classification

  • CWE-178: Improper Handling of Case Sensitivity

Primary references