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Zammad CVE-2020-26031

MEDIUM
Incorrect Default Permissions (CWE-276)
2020-12-28 cve@mitre.org
Privilege Escalation Zammad
4.3
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
4.3 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

1
CVE Published
Dec 28, 2020 - 08:15 nvd
MEDIUM 4.3

DescriptionNVD

An issue was discovered in Zammad before 3.4.1. The global-search feature leaks Knowledge Base drafts to Knowledge Base readers (who are authenticated but have insufficient permissions).

AnalysisAI

An issue was discovered in Zammad before 3.4.1. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Incorrect Default Permissions (CWE-276), which allows attackers to access resources due to overly permissive default settings. An issue was discovered in Zammad before 3.4.1. The global-search feature leaks Knowledge Base drafts to Knowledge Base readers (who are authenticated but have insufficient permissions). Affected products include: Zammad. Version information: before 3.4.1..

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Set restrictive default permissions, follow principle of least privilege, review defaults during deployment.

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Same weakness CWE-276 – Incorrect Default Permissions

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CVE-2013-0632 CRITICAL POC
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CVE-2017-8625 HIGH POC
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CVE-2016-5425 HIGH POC
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CVE-2024-55215 CRITICAL POC
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CVE-2024-57604 CRITICAL POC
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CVE-2025-60262 CRITICAL POC
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Same technique Privilege Escalation

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CVE-2025-47812 CRITICAL POC
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CVE-2012-0297 CRITICAL POC
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CVE-2020-26031 vulnerability details – vuln.today
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