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.
Remediation
References
Related Vulnerabilities
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IBM RTC CVE-2018-1694 Vulnerability (CVE-2018-1694)
Apache HTTP Server Resource Management Errors Vulnerability (CVE-2011-1928)
MediaWiki Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2014-3455)