Vulnerability Description
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, attacker-controlled HTML in inbound emails or tickets could bypass the image URL sanitizer using path traversal sequences. When an authenticated agent views the content, the browser resolves the URL to a protected API endpoint and sends the request with the agent's session cookie, enabling side effects such as forced logout without any user interaction. This issue is fixed in version 7.1.2.
Related Weaknesses (CWE)
References
- https://github.com/zammad/zammad/commit/856af85c12413087d6a74ffee25b16048a5ed8c3
- https://github.com/zammad/zammad/security/advisories/GHSA-33p2-cm7w-62g3
FAQ
What is CVE-2026-63006?
CVE-2026-63006 is a documented vulnerability. Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, attacker-controlled HTML in inbound emails or tickets could bypass the image URL sanitizer using path traversal sequ...
How severe is CVE-2026-63006?
CVSS scoring is not yet available for CVE-2026-63006. Check NVD for updates.
Is there a patch for CVE-2026-63006?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.