Provide references for CVE-2021-40595.
Where can I find more information about CVE-2021-40595?
References are available at: https://www.sourcecodester.com/php/14910/online-leave-management-system-php-free-source-code.html, https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/oretnom23/CVE-nu11-03.