Security Advisory


· Please read carefully and check if the version of your Zammad system is affected by this vulnerability. Please send us information regarding vulnerabilities in Zammad!

Security Advisory Details

  • ID: ZAA-2020-19
  • Date: 09/22/2020
  • Title: Admin Users without ticket.* Permission can access Tickets
  • Severity: medium
  • Product: Zammad 1.0.x up to 3.4.0
  • Fixed in: Zammad 3.4.1, 3.5.0
  • References:
    --> CVE: Pending

Vulnerability Descriptions

Admin Users without ticket.* Permission can access Tickets

An error in the authorization logic allows Users with admin. Permissions but without ticket. Permissions to access Tickets. An attacker could gain access to information without proper authorization check.

This vulnerability is fixed in the latest versions of Zammad and it is recommended to upgrade to one of these.

Fixed releases can be found at:

Additional information

Online version of this advisory:

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