# CVE-2026-63653: Group-Office: SSRF via Bookmark/description JMAP action — server makes arbitrary HTTP(S) requests to user-controlled URL and reflects part of the response

Status: published. Published: 2026-11-10. Updated: 2026-11-10.

Group-Office is an enterprise customer relationship management and groupware tool. Prior to version 26.0.37, go/modules/community/bookmarks/controller/Bookmark.php's description() action takes a fully attacker-controlled url parameter and passes it, unvalidated, to \GO\Base\Util\HttpClient::request(). HttpClient::_initRequest() sets CURLOPT_URL directly from this value with no host/IP validation at all. This can result in SSRF via Bookmark/description JMAP action. This issue has been patched in version 26.0.37.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Intermesh / groupoffice: < 26.0.37 (affected). Source: CNA: GitHub_M

## Severity and prioritization

- CVSS 3.1: 5 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N; source: CNA: GitHub_M

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-918

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/Intermesh/groupoffice/security/advisories/GHSA-3cp5-q6fp-mqf5 (CNA: GitHub_M; x_refsource_CONFIRM)

- https://github.com/Intermesh/groupoffice/releases/tag/v26.0.37 (CNA: GitHub_M; x_refsource_MISC)

## Provenance

- CNA: GitHub_M: https://www.cve.org/CVERecord?id=CVE-2026-63653; retrieved 2026-11-10; source updated 2026-11-10

Revision: 3186f5b99f7fe85a24b36280458381c30785c38c2858290a8f2317c3166d6a2b

Canonical: https://y2.dev/cve/CVE-2026-63653

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