CVE-2026-25511

MediumCVSS 4.9/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 4.9/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-918

Affected software

Vendor	Product	Versions
Intermesh	groupoffice	< 6.8.150; < 25.0.82; < 26.0.5

References

https://github.com/Intermesh/groupoffice/commit/5ac199dce758e1ce0d1cdb6905df5da3c2af42b3Patch
https://github.com/Intermesh/groupoffice/security/advisories/GHSA-r9v4-jm2r-r9pmExploit, Vendor Advisory
https://github.com/Intermesh/groupoffice/security/advisories/GHSA-r9v4-jm2r-r9pmExploit, Vendor Advisory

Timeline

Published: Feb 4, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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