CVE-2020-26028
An issue was discovered in Zammad before 3.4.1. Admin Users without a ticket.* permission can...
An issue was discovered in Zammad before 3.4.1. Admin Users without a ticket.* permission can access Tickets.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
An issue was discovered in Zammad before 3.4.1. Admin Users without a ticket.* permission can access Tickets.
- Record
CVE-2020-26028- CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in Zammad before 3.4.1. Admin Users without a ticket.* permission can access Tickets.
- Record
CVE-2020-26028- Updated
- 2026-11-02
EUVDEUVD-2020-18658 No score
An issue was discovered in Zammad before 3.4.1. Admin Users without a ticket.* permission can access Tickets.
- Record
EUVD-2020-18658- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-g929-vm5v-86gq No score
An issue was discovered in Zammad before 3.4.1. Admin Users without a ticket.* permission can...
An issue was discovered in Zammad before 3.4.1. Admin Users without a ticket.* permission can access Tickets.
- Record
GHSA-g929-vm5v-86gq- Weakness
- CWE-863
- Updated
- 2026-11-02
OSV
An issue was discovered in Zammad before 3.4.1. Admin Users without a ticket.* permission can access Tickets.
- Record
CVE-2020-26028- CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-26028 is a medium vulnerability (CVSS 4.9) in Zammad, published December 28, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.86%, the 58th percentile. No source names a fixed version.