CVE-2026-33755 HIGH

CVE-2026-33755: Authenticated SQL Injection in Contact/query addressBookIds filter

Vendor Intermesh
Product groupoffice
Weakness CWE-89 · SQLi
Published March 27, 2026
Last update March 27, 2026
View on NVD All CVEs

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.158, 25.0.92, and 26.0.17, an authenticated SQL Injection vulnerability in the JMAP `Contact/query` endpoint allows any authenticated user with basic addressbook access to extract arbitrary data from the database — including active session tokens of other users. This enables full account takeover of any user, including the System Administrator, without knowing their password. Versions 6.8.158, 25.0.92, and 26.0.17 fix the issue.

Key dates

02Disclosure timeline

March 27, 2026 CVE published
March 27, 2026 Record updated