CSRF in Zammad

CVE-2020-26033

An issue was discovered in Zammad before 3.4.1. The Tag and Link REST API endpoints (for add and delete) lack a CSRF token check.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (27.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-26033: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-26033?
CVE-2020-26033 is a medium-severity vulnerability in Zammad, classified under Cross-Site Request Forgery (CSRF). CVSS score: 5.4/10. Published 2020-12-28.
How severe is CVE-2020-26033?
Medium severity. CVSS v3 base score is 5.4 out of 10.