CVE-2023-46730: Server-Side Request Forgery in groupoffice

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-11-07 · updated 2026-06-17
Weakness: CWE-918

Description

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.

Affected products

Intermesh groupoffice: from 6.3.1 before 6.6.177; from 6.7.0 before 6.7.54; from 6.8.0 before 6.8.15 — fixed in 6.6.177, 6.7.54, 6.8.15

How to fix

Upgrade to a fixed version: Intermesh groupoffice 6.6.177, 6.7.54, 6.8.15. Check the vendor advisory for mitigations.

References

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