GetSimpleCMS <=3.3.15 has an open redirect in admin/changedata.php via the redirect function to the url parameter. Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-18660 Reference (s):
- 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-97928

