Security Advisory


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Security Advisory Details

  • ID: ZAA-2020-01
  • Date: 03/03/2020
  • Title: Persistent Cross-Site Scripting - "Toolbar" (XSS)
  • Severity: high
  • Product: Zammad 1.0.x up to 3.2.0
  • Fixed in: Zammad 3.2.1, 3.3.0
  • References:
    --> CVE: 2020-10099

Vulnerability Descriptions

Persistent Cross-Site Scripting - "Toolbar" (XSS) (CVE 2020-10099)

Malicious code can be provided by a low-privileged user through the Ticket functionality in Zammad. The malicious JavaScript with execute within the browser of any user who opens the ticket or has the ticket within the “Toolbar”.

Special 🙏 and 🤘 and ❤️ to:

Recommended Resolution

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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