ID: ZAA-2023-02 Date: 2023-03-14 Title: User Information Exposure Severity: Low Product: Zammad 5.3.x Fixed in: Zammad 5.4.0 References: - CVE-2023-29867 Vulnerability Descriptions User Information Exposure: An authenticated attacker could gain information about linked accounts of users involved in their tickets using the Zammad API. 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: - https://zammad.org/ - https://ftp.zammad.com/ Or just update your Zammad if installed via OS package manager. Additional Information Online version of this advisory: https://zammad.com/en/advisories/zaa-2023-02 Please send remarks on security issues exclusively to security@zammad.com.