CVE-2026-34723

HIGH

Zammad has incorrect access control in getting_started_controller

Title source: cna

Description

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, unauthenticated remote attackers were able to access the getting started endpoint to get access to sensitive internal entity data, even after the system setup was completed. This vulnerability is fixed in 7.0.1 and 6.5.4.

References (1)

[X_Refsource_Confirm] https://github.com/zammad/zammad/security/advisories/GHSA-hcm9-ch62-5727

Scores

CVSS v3 7.5

EPSS 0.0005

EPSS Percentile 15.6%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-284

Status published

Products (3)

zammad/zammad 7.0.0

zammad/zammad < 6.5.4 (2 CPE variants)

zammad/zammad >= 7.0.0-alpha, < 7.0.1

Published Apr 08, 2026

Tracked Since Apr 09, 2026