CVE-2021-28060: Group-Office Group Office

Medium severity, CVSS 5.3. EPSS: 1.4% chance of exploitation in the next 30 days.

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.

Affected products

• Group-Office Group Office: version 6.4.196 only

Published 2021-04-14. Last modified 2026-06-17.