Improper Authorization Vulnerability in Zammad 7.1.0 by Zammad
CVE-2026-13229

7.1HIGH

Key Information:

Vendor

Zammad

Status
Zammad
Vendor
CVE Published:
4 August 2026

What is CVE-2026-13229?

Zammad 7.1.0 features a vulnerability that allows authenticated users to perform unauthorized actions through the ticket article attachment cloning endpoint. This can lead to potential data leakage or unintended access to sensitive information. It is crucial for organizations using this version to apply necessary patches to mitigate risks.

Affected Version(s)

Zammad Windows 0 <= 7.0.1

References

https://fluidattacks.com/es/advisories/chicago
third-party-advisory
https://github.com/zammad/zammad/security/advisories/GHSA...
vendor-advisory
https://github.com/zammad/zammad/releases/tag/7.1.2
patch

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Oscar Naveda
Fluid Attacks' AI SAST Scanner
.