CVE-2026-33755HIGH 8.8EPSS p30.4%

CVE-2026-33755CVE-2026-33755

Description

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.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS0.39% probability of exploitation · percentile 30.4% · 2026-06-19T12:03:05Z
Published2026-03-27
Last modified2026-04-20

Underlying weaknesses· 1

CWE-89

References

  1. https://github.com/Intermesh/groupoffice/security/advisories/GHSA-3gc4-5993-c2qc

1

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Special Elements used in an SQL Command ('SQL Injection')cwe-890%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.