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
Published Nov 10, 2026
·Updated
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 CURLOPTURL 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
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Group-Officeto a version that resolves this vulnerability.Fixed in 26.0.37
Event History
Nov 10, 2026
CVE Published
via MITRE·04:35 PM
Data Sourced
via MITRE·04:35 PM
DescriptionSeverityWeakness