Provide references for CVE-2018-20556.
Where can I find more information about CVE-2018-20556?
References are available at: http://packetstormsecurity.com/files/151692/WordPress-Booking-Calendar-8.4.3-SQL-Injection.html, https://www.exploit-db.com/exploits/46377/, https://gist.github.com/B0UG/a750c2c204825453e6faf898ea6d09f6, https://vulners.com/exploitdb/EDB-ID:46377.