Provide references for CVE-2021-40247.
Where can I find more information about CVE-2021-40247?
References are available at: https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/B%26E%20Tracker-by:oretnom23-v1.0, https://www.sourcecodester.com/php/14893/budget-and-expense-tracker-system-php-free-source-code.html.