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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.
Reserved 2025-04-05 | Published 2025-04-05 | Updated 2025-04-07 | Assigner mitreCWE-288 Authentication Bypass Using an Alternate Path or Channel
zammad.com/en/advisories/zaa-2025-04
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