CVE-2021-28060
A Server-Side Request Forgery (SSRF) vulnerability in Group Office 6.4.196 allows a remote attacker to forge GET requests to arbitrary URLs via the url parameter to group/api/upload.php.
Date published : 2021-04-14
https://fatihhcelik.blogspot.com/2020/12/group-office-crm-ssrf.html