CVE-2025-32357 Missing authorization in Zammad

Medium 4.3 Published Updated

Authenticated agents can bypass permissions to read unauthorized knowledge base content via the API.

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

What is CVE-2025-32357?

CVE-2025-32357 is a medium-severity missing authorization vulnerability in Zammad Zammad, published on 5 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In Zammad 6.4.x before 6.4.2, an authenticated agent with knowledge base permissions was able to use the Zammad API to fetch knowledge base content that they have no permission for.

Weakness: CWE-306, CWE-288

Which versions are affected by CVE-2025-32357?

It affects 1 product.

Products include Zammad Zammad.

How do I fix CVE-2025-32357?

No fix has been published for CVE-2025-32357 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2025-32357 being exploited?

There is no known exploitation of CVE-2025-32357 in the wild and no public exploit code.

All Zammad Zammad vulnerabilities

Sources

Also known as GHSA-9879-4r59-96j2.

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