CVE-2025-32358 Server-side request forgery in Zammad

Medium 4.0 Published Updated

Authenticated admins can exploit webhook redirect handling to perform Server-Side Request Forgery against internal networks.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-32358?

CVE-2025-32358 is a medium-severity server-side request forgery vulnerability in Zammad Zammad, published on 5 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-918

Which versions are affected by CVE-2025-32358?

It affects 1 product.

Products include Zammad Zammad.

How do I fix CVE-2025-32358?

No fix has been published for CVE-2025-32358 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2025-32358 being exploited?

There is no known exploitation of CVE-2025-32358 in the wild and no public exploit code.

All Zammad Zammad vulnerabilities

Sources

Also known as GHSA-h7vp-w2vp-6c97.

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