CVE-2026-25511: 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…

PriorityP430medium4.9CVSS 3.1

AVNACLPRHUINSUCHINAN

EPSS

0.40%

31.4th percentile

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

6 ranges

Vendor	Product	Version range	Fixed in
group-office	group_office	>= 25.0.1 < 25.0.82	25.0.82
group-office	group_office	>= 26.0.1 < 26.0.5	26.0.5
group-office	group_office	>= 6.8.0 < 6.8.150	6.8.150
intermesh	groupoffice	< 6.8.150	6.8.150
intermesh	groupoffice	< 25.0.82	25.0.82
intermesh	groupoffice	< 26.0.5	26.0.5

CVSS provenance

nvdv3.14.9MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

nvdv4.08.2HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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