CSRF in Zammad

CVE-2017-6080

An issue was discovered in Zammad before 1.0.4, 1.1.x before 1.1.3, and 1.2.x before 1.2.1, caused by lack of a protection mechanism involving HTTP Access-Control headers. To exploit the vulnerability, an attacker can send cross-domain requests directly to the REST API for users with a valid session cookie and receive the result.

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.007 (50.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Zammad — versions 1.1.0, 1.1.1, 1.1.2
  • N/a — versions n/a

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-6080?
CVE-2017-6080 is a critical-severity vulnerability in Zammad, classified under Cross-Site Request Forgery (CSRF). CVSS score: 9.8/10. Published 2017-03-13.
How severe is CVE-2017-6080?
Critical severity. CVSS v3 base score is 9.8 out of 10.