CVE-2020-26031 Missing authorization in n/a

What is CVE-2020-26031?

CVE-2020-26031 is a medium-severity missing authorization vulnerability in Zammad Zammad, published on 28 Dec 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

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).

Weakness: CWE-276

Which versions are affected by CVE-2020-26031?

It affects 1 product.

Products include Zammad Zammad.

How do I fix CVE-2020-26031?

No fix has been published for CVE-2020-26031 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2020-26031 being exploited?

There is no known exploitation of CVE-2020-26031 in the wild and no public exploit code.

Other vulnerabilities in Zammad Zammad

• CVE-2026-102489 Zammad GmbH Zammad Session Fixation Exploited High 8.7
• CVE-2026-102490 Zammad GmbH Zammad Improper Privilege Management Exploited High 8.5
• CVE-2022-48021 Code injection in n/a Critical 9.8
• CVE-2022-35490 Security feature bypass in n/a Critical 9.8
• CVE-2021-42090 Deserialization in n/a Critical 9.8

All Zammad Zammad vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-cg9q-rwc5-c6x9.