Summaryinfo

A vulnerability classified as critical was found in Zammad up to 6.4.1. Affected by this vulnerability is an unknown functionality of the component API. The manipulation results in authentication bypass. This vulnerability is cataloged as CVE-2025-32357. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Detailsinfo

A vulnerability classified as critical has been found in Zammad up to 6.4.1. Affected is an unknown function of the component API. The manipulation with an unknown input leads to a authentication bypass vulnerability. CWE is classifying the issue as CWE-288. A product requires authentication, but the product has an alternate path or channel that does not require authentication. This is going to have an impact on confidentiality. CVE summarizes:

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.

The advisory is available at zammad.com. This vulnerability is traded as CVE-2025-32357 since 04/05/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

Upgrading to version 6.4.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-14716). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

• Zammad

Version

• 6.4.0
• 6.4.1

License

• open-source

CPE 2.3info

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CPE 2.2info

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