What’s Vulnerable › Vulnerabilities

CVE-2020-29159

• 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

Description

An issue was discovered in Zammad before 3.5.1. The default signup Role (for newly created Users) can be a privileged Role, if configured by an admin. This behvaior was unintended.

Affected products

• zammad: before 3.5.1 — fixed in 3.5.1

How to fix

Upgrade to a fixed version: zammad 3.5.1. Check the vendor advisory for mitigations.

References

• https://github.com/zammad/zammad/commit/f0462d4c20c2968b52b5dc6a585f26c0409b4fc4
• https://zammad.com/en/advisories/zaa-2020-22
• https://github.com/zammad/zammad/commit/f0462d4c20c2968b52b5dc6a585f26c0409b4fc4
• https://zammad.com/en/advisories/zaa-2020-22

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