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Please read carefully and check if the version of your Zammad system is affected by this vulnerability. Please send information regarding vulnerabilities in Zammad to: security at zammad.com

Security Advisory Details

Vulnerability Descriptions

Application Allows for Sensitive Information Caching (CVE CVE-2020-10096)

Zammad does not prevent caching of confidential data within browser memory. An attacker who either remotely compromises or obtains physical access to a user's workstation can browse the browser cache contents and obtain sensitive information. The attacker does not need to be authenticated with the application to view this information, as it would be available via the browser cache.

Special 🙏 and 🤘 and ❤️ to:

N: Guardian Project
W: https://guardianproject.info

N: Center for Digital Resilience
W: https://digiresilience.org

Recommended Resolution

This vulnerability is fixed in the latest versions of Zammad and it is recommended to upgrade to one of these.

Fixed releases can be found at:

Or just update your Zammad if installed via OS package manager.

Additional information

Online version of this advisory: https://zammad.com/news/security-advisory-zaa-2020-11

Send all remarks to security issues to security @ zammad.com.