CVE-2026-25511
MEDIUMCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
4Tags
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.
Analysis
Server-side request forgery in Group Office's WOPI service discovery allows authenticated System Administrators to access internal hosts, ports, and files on the affected server. The vulnerability enables attackers to exfiltrate SSRF response bodies through the debug system, effectively converting a blind SSRF into a visible information disclosure attack. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Vendor patch is available.
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External POC / Exploit Code
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