Vulnerability Description
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, a customer who can view a ticket cannot see internal ticket articles through the article listing API. However, the same customer can directly request an attachment belonging to an internal article via the attachment download endpoint, bypassing article-level authorization. This results in an inconsistency: The article listing hides internal articles from customers. The attachment download only checks the parent ticket, not the article, so the same customer can download the attachment directly. This issue is fixed in version 7.0.2.
Related Weaknesses (CWE)
References
- https://github.com/zammad/zammad/commit/e661d00efb3d2c4ef4af3a36ce79d7c724323f97
- https://github.com/zammad/zammad/releases/tag/7.0.2
- https://github.com/zammad/zammad/security/advisories/GHSA-374g-4f73-g7m7
FAQ
What is CVE-2026-56723?
CVE-2026-56723 is a documented vulnerability. Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, a customer who can view a ticket cannot see internal ticket articles through the article listing API. However, the s...
How severe is CVE-2026-56723?
CVSS scoring is not yet available for CVE-2026-56723. Check NVD for updates.
Is there a patch for CVE-2026-56723?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.