Provide references for CVE-2020-18657.
Where can I find more information about CVE-2020-18657?
References are available at: https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1310, https://github.com/LoRexxar/CVE_Request/blob/master/getsimplecms%20v3.3.15/getsimplecms_before_v3.3.15.md, https://www.seebug.org/vuldb/ssvid-97929.