CVE-2026-63653

What it is

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.

At a glance

Exploitability

Can be exploited over the network with a low-privilege account. Limited direct impact.

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-07-17 14:47 UTC ReservedThe CVE id was reserved by its CNA
2. 2026-11-10 17:17 UTC PublishedDisclosed publicly on CVE.org and NVD
3. 2026-11-10 17:17 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: not scored yet.
• Severity: 5.0 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2026-11-10 17:17 UTC

Last modified

2026-11-10 17:17 UTC

Weakness

CWE-918 · Server-side request forgery

Record status

Received

Attack profile CVSS 3.1 · 5.0

Attack vector

Network

Complexity

Low

Privileges needed

Low

User interaction

None

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2026-63653.md and follow it. Check whether this project is affected by CVE-2026-63653. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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