CVE-2026-25511
February 04, 2026
Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.150, 25.0.82, and 26.0.5, an authenticated user within the System Administrator group can trigger a full SSRF via the WOPI service discovery URL, including access to internal hosts/ports. The SSRF response body can be exfiltrated via the built‑in debug system, turning it into a visible SSRF. This also allows full server-side file read. This issue has been patched in versions 6.8.150, 25.0.82, and 26.0.5.
Affected Packages
https://github.com/Intermesh/groupoffice.git (GITHUB):
Affected version(s) >=v26.0.1 <v26.0.5Fix Suggestion:
Update to version v26.0.5https://github.com/Intermesh/groupoffice.git (GITHUB):
Affected version(s) >=v25.0.1 <v25.0.82Fix Suggestion:
Update to version v25.0.82https://github.com/Intermesh/groupoffice.git (GITHUB):
Affected version(s) >=v6.2.85 <v6.8.150Fix Suggestion:
Update to version v6.8.150Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Server-Side Request Forgery (SSRF)
EPSS
Base Score:
0.02
