Group-Office is an enterprise CRM and groupware tool. In affected versions there is full Server-Side Request Forgery (SSRF) vulnerability in the /api/upload.php endpoint. The /api/upload.php endpoint does not filter URLs which allows a malicious user to cause the server to make resource requests to untrusted domains. Note that protocols like file:// can also be used to access the server disk. The request result (on success) can then be retrieved using /api/download.php. This issue has been addressed in versions 6.8.15, 6.7.54, and 6.6.177. Users are advised to upgrade. There are no known workarounds for this vulnerability.

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.

Cross Site Scripting (XSS) in the contact page of Group Office CRM 6.4.196 by uploading a crafted svg file.

Cross Site Scripting (XSS) in Group Office CRM 6.4.196 via the SETLANGUAGE parameter.

SQL injection vulnerability in modules/calendar/json.php in Group-Office community before 4.0.90 allows remote authenticated users to execute arbitrary SQL commands via the sort parameter.