CVE-2026-25511

· MEDIUMAnalyzed

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CVSS v3.1

4.9

CVSS v4.0

8.2

EPSS

0.40%

Published

Feb 4, 2026

Modified

Feb 11, 2026

Public PoC / Exploit (1)

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Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

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.

CVSS Vector

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

Weaknesses (CWE)

CWE-918

Affected Products (3)

group-office · group_office (up to 6.8.150)vulnerable

group-office · group_office (up to 25.0.82)vulnerable

group-office · group_office (up to 26.0.5)vulnerable

References (3)

https://github.com/Intermesh/groupoffice/commit/5ac199dce758e1ce0d1cdb6905df5da3c2af42b3

Patch

https://github.com/Intermesh/groupoffice/security/advisories/GHSA-r9v4-jm2r-r9pm

ExploitVendor Advisory

https://github.com/Intermesh/groupoffice/security/advisories/GHSA-r9v4-jm2r-r9pm

ExploitVendor Advisory

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