CVE-2026-34721
MEDIUM WAF: Low
CVSS 6.5
Published: 2026-04-08
CWE-352
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the OAuth callback endpoints for Microsoft, Google, and Facebook external credentials do not validate a CSRF state parameter. This vulnerability is fixed in 7.0.1 and 6.5.4.
WAF Coverage Analysis
Cross-Site Request Forgery (CSRF)
Low WAF Coverage
OWASP: A01:2021 Broken Access Control
Affected Software
| Vendor | Product | Version |
|---|---|---|
| zammad | zammad | up to 6.5.4 |
| zammad | zammad | 7.0.0 |
References
- github.com (Vendor Advisory)