Back to Database
Status published
Critical
CVE-2020-26030
An issue was discovered in Zammad before 3.4.1. There is...
Vulnerability Description
An issue was discovered in Zammad before 3.4.1. There is an authentication bypass in the SSO endpoint via a crafted header, when SSO is not configured. An attacker can create a valid and authenticated session that can be used to perform any actions in the name of other users.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2020-26030
Credits & Attribution
No credits recorded in the NVD database.
More from zammad
View All →CVE-2022-48023
Insufficient privilege verification in Zammad v5.3.0 allows an authenticated attacker...
Medium
4.3
CVE-2022-48022
An issue in the component /api/v1/mentions of Zammad v5.3.0 allows...
Unknown
0
CVE-2022-48021
A vulnerability in Zammad v5.3.0 allows attackers to execute arbitrary...
Unknown
0
CVE-2022-40817
Zammad 5.2.1 has a fine-grained permission model that allows to...
Unknown
0
CVE-2022-40816
Zammad 5.2.1 is vulnerable to Incorrect Access Control. Zammad's asset...
Unknown
0
Affected Vendor
zammad
View all reports →Affected Software
zammad
Vulnerable Versions:
1.0.0
Timeline
Official Publish:
December 28th, 2020
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.