CVE-2026-33755CWE-89

Authenticated SQL Injection in Contact/query addressBookIds filter

High · published March 27, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
39.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00464 · 39.2th percentile
Weakness
CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Published
2026-03-27T14:08Z
EPSS history
Timeline
  • 27 MAR 14:08Z
    Authenticated SQL Injection in Contact/query addressBookIds filter
    cvelistv5