Advisory Published
Updated

CVE-2020-26034

First published: Mon Dec 28 2020(Updated: )

An account-enumeration issue was discovered in Zammad before 3.4.1. The Create User functionality is implemented in a way that would enable an anonymous user to guess valid user email addresses. The application responds differently depending on whether the input supplied was recognized as associated with a valid user.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Zammad Zammad>=1.0.0<3.4.1

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Frequently Asked Questions

  • What is CVE-2020-26034?

    CVE-2020-26034 is an account-enumeration issue discovered in Zammad before 3.4.1.

  • What is the severity of CVE-2020-26034?

    The severity of CVE-2020-26034 is medium with a CVSS score of 4.3.

  • How does CVE-2020-26034 affect Zammad?

    CVE-2020-26034 affects Zammad versions before 3.4.1.

  • How can an anonymous user exploit CVE-2020-26034?

    An anonymous user can exploit CVE-2020-26034 by guessing valid user email addresses and observing the application's response.

  • Is there a fix for CVE-2020-26034?

    Yes, the fix for CVE-2020-26034 is available in Zammad version 3.4.1.

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