What’s Vulnerable › Vulnerabilities

CVE-2020-26028

Severity: medium (CVSS 4.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-12-28 · updated 2026-06-17
Weakness: CWE-863

Description

An issue was discovered in Zammad before 3.4.1. Admin Users without a ticket.* permission can access Tickets.

Affected products

zammad: from 1.0.0 before 3.4.1 — fixed in 3.4.1

How to fix

Upgrade to a fixed version: zammad 3.4.1. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2020-26028 or the next vulnerability affects your stack