CVE-2025-32358: Zammad

Medium severity, CVSS 4.1. EPSS: 0.3% chance of exploitation in the next 30 days.

In Zammad 6.4.x before 6.4.2, SSRF can occur. Authenticated admin users can enable webhooks in Zammad, which are triggered as POST requests when certain conditions are met. If a webhook endpoint returned a redirect response, Zammad would follow it automatically with another GET request. This could be abused by an attacker to cause GET requests for example in the local network.

Affected products

• Zammad Zammad: from 6.4.0, before 6.4.2 (fixed in 6.4.2)

Published 2025-04-05. Last modified 2026-06-17.