CVE-2023-50453: Zammad

Medium severity, CVSS 5.3. EPSS: 0.5% chance of exploitation in the next 30 days.

An issue was discovered in Zammad before 6.2.0. It uses the public endpoint /api/v1/signshow for its login screen. This endpoint returns internal configuration data of user object attributes, such as selectable values, which should not be visible to the public.

Affected products

• Zammad Zammad: version 6.1.0 only; version 6.2.0 only

Published 2023-12-10. Last modified 2026-06-17.