Provide references for CVE-2021-42077.
Where can I find more information about CVE-2021-42077?
References are available at: http://packetstormsecurity.com/files/164777/PHP-Event-Calendar-Lite-Edition-SQL-Injection.html, https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2021-048.txt.