ZAA-2018-01

Security Advisory Details

• ID: ZAA-2018-01
• Date: 03/29/2018
• Title: XSS in Table Overviews
• Severity: high
• Product: Zammad 2.2.x up to 2.3.0
• Fixed in: Zammad 2.2.2, 2.3.1
• References:
  --> CVE-2018-1000154
  --> https://github.com/zammad/zammad/issues/1869

Vulnerability Descriptions

1 - XSS vulnerability (CVE-2018-1000154)

Malicious HTML send via REST or email lead to execution in the application domain causing a XSS vulnerability. Zammad did not properly sanitizes user input in the title of a table This is now fixed.

Special 🙏 and 🤘 and ❤️ to:

• N: ValtteriL / Valtteri Lehtinen
• D: Hacker
• W: https://github.com/ValtteriL

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:

• https://zammad.org/
• https://ftp.zammad.com/
  Or just update your Zammad if installed via OS package manager.

If you have a hosted Zammad, you do not need to take care. It's already updated.

Additional information

Online version of this advisory: https://zammad.com/en/advisories/zaa-2018-01

Send all remarks to security issues to security@zammad.com.