CVE-2026-33755

HIGH
MEDIUM Priority: 0.03 BB Relevance: 68/100
Published: 2026-03-27 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: High
A: High

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.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
intermesh group-office < 6.8.158
intermesh group-office 25.0.1 – 25.0.92
intermesh group-office 26.0.1 – 26.0.17

References & Advisories (1)

Bug Bounty Relevance

68 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

8.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.39%
Raw Score 0.003940
Percentile 33.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00394
2026-10-28
0.00394

Intelligence Sources

nvd ref →