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Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2020-26030

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 64.5%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 7.5
Products affected by CVE-2020-26030
  • Zammad » Zammad » Version: 1.0.0
    cpe:2.3:a:zammad:zammad:1.0.0
  • Zammad » Zammad » Version: 1.0.1
    cpe:2.3:a:zammad:zammad:1.0.1
  • Zammad » Zammad » Version: 1.0.2
    cpe:2.3:a:zammad:zammad:1.0.2
  • Zammad » Zammad » Version: 1.0.3
    cpe:2.3:a:zammad:zammad:1.0.3
  • Zammad » Zammad » Version: 1.0.4
    cpe:2.3:a:zammad:zammad:1.0.4
  • Zammad » Zammad » Version: 1.1.0
    cpe:2.3:a:zammad:zammad:1.1.0
  • Zammad » Zammad » Version: 1.1.1
    cpe:2.3:a:zammad:zammad:1.1.1
  • Zammad » Zammad » Version: 1.1.2
    cpe:2.3:a:zammad:zammad:1.1.2
  • Zammad » Zammad » Version: 1.1.3
    cpe:2.3:a:zammad:zammad:1.1.3
  • Zammad » Zammad » Version: 1.1.4
    cpe:2.3:a:zammad:zammad:1.1.4
  • Zammad » Zammad » Version: 1.2.0
    cpe:2.3:a:zammad:zammad:1.2.0
  • Zammad » Zammad » Version: 1.2.1
    cpe:2.3:a:zammad:zammad:1.2.1
  • Zammad » Zammad » Version: 1.2.2
    cpe:2.3:a:zammad:zammad:1.2.2
  • Zammad » Zammad » Version: 1.2.3
    cpe:2.3:a:zammad:zammad:1.2.3
  • Zammad » Zammad » Version: 1.3.0
    cpe:2.3:a:zammad:zammad:1.3.0
  • Zammad » Zammad » Version: 1.3.1
    cpe:2.3:a:zammad:zammad:1.3.1
  • Zammad » Zammad » Version: 1.3.2
    cpe:2.3:a:zammad:zammad:1.3.2
  • Zammad » Zammad » Version: 1.4.0
    cpe:2.3:a:zammad:zammad:1.4.0
  • Zammad » Zammad » Version: 1.4.1
    cpe:2.3:a:zammad:zammad:1.4.1
  • Zammad » Zammad » Version: 1.5.0
    cpe:2.3:a:zammad:zammad:1.5.0
  • Zammad » Zammad » Version: 1.5.1
    cpe:2.3:a:zammad:zammad:1.5.1
  • Zammad » Zammad » Version: 1.6.0
    cpe:2.3:a:zammad:zammad:1.6.0
  • Zammad » Zammad » Version: 1.6.1
    cpe:2.3:a:zammad:zammad:1.6.1
  • Zammad » Zammad » Version: 2.0.0
    cpe:2.3:a:zammad:zammad:2.0.0
  • Zammad » Zammad » Version: 2.0.1
    cpe:2.3:a:zammad:zammad:2.0.1
  • Zammad » Zammad » Version: 2.1.0
    cpe:2.3:a:zammad:zammad:2.1.0
  • Zammad » Zammad » Version: 2.1.1
    cpe:2.3:a:zammad:zammad:2.1.1
  • Zammad » Zammad » Version: 2.1.2
    cpe:2.3:a:zammad:zammad:2.1.2
  • Zammad » Zammad » Version: 2.10.0
    cpe:2.3:a:zammad:zammad:2.10.0
  • Zammad » Zammad » Version: 2.2.0
    cpe:2.3:a:zammad:zammad:2.2.0
  • Zammad » Zammad » Version: 2.2.1
    cpe:2.3:a:zammad:zammad:2.2.1
  • Zammad » Zammad » Version: 2.2.2
    cpe:2.3:a:zammad:zammad:2.2.2
  • Zammad » Zammad » Version: 2.3.0
    cpe:2.3:a:zammad:zammad:2.3.0
  • Zammad » Zammad » Version: 2.3.1
    cpe:2.3:a:zammad:zammad:2.3.1
  • Zammad » Zammad » Version: 2.4.0
    cpe:2.3:a:zammad:zammad:2.4.0
  • Zammad » Zammad » Version: 2.4.1
    cpe:2.3:a:zammad:zammad:2.4.1
  • Zammad » Zammad » Version: 2.5.0
    cpe:2.3:a:zammad:zammad:2.5.0
  • Zammad » Zammad » Version: 2.5.1
    cpe:2.3:a:zammad:zammad:2.5.1
  • Zammad » Zammad » Version: 2.6.0
    cpe:2.3:a:zammad:zammad:2.6.0
  • Zammad » Zammad » Version: 2.6.1
    cpe:2.3:a:zammad:zammad:2.6.1
  • Zammad » Zammad » Version: 2.7.0
    cpe:2.3:a:zammad:zammad:2.7.0
  • Zammad » Zammad » Version: 2.7.1
    cpe:2.3:a:zammad:zammad:2.7.1
  • Zammad » Zammad » Version: 2.7.2
    cpe:2.3:a:zammad:zammad:2.7.2
  • Zammad » Zammad » Version: 2.8.0
    cpe:2.3:a:zammad:zammad:2.8.0
  • Zammad » Zammad » Version: 2.8.1
    cpe:2.3:a:zammad:zammad:2.8.1
  • Zammad » Zammad » Version: 2.9.0
    cpe:2.3:a:zammad:zammad:2.9.0
  • Zammad » Zammad » Version: 3.0.0
    cpe:2.3:a:zammad:zammad:3.0.0
  • Zammad » Zammad » Version: 3.0.1
    cpe:2.3:a:zammad:zammad:3.0.1
  • Zammad » Zammad » Version: 3.1.0
    cpe:2.3:a:zammad:zammad:3.1.0
  • Zammad » Zammad » Version: 3.1.1
    cpe:2.3:a:zammad:zammad:3.1.1
  • Zammad » Zammad » Version: 3.2.0
    cpe:2.3:a:zammad:zammad:3.2.0
  • Zammad » Zammad » Version: 3.2.1
    cpe:2.3:a:zammad:zammad:3.2.1
  • Zammad » Zammad » Version: 3.3.0
    cpe:2.3:a:zammad:zammad:3.3.0
  • Zammad » Zammad » Version: 3.3.1
    cpe:2.3:a:zammad:zammad:3.3.1
  • Zammad » Zammad » Version: 3.4.0
    cpe:2.3:a:zammad:zammad:3.4.0


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