ID: ZAA-2022-12 Date: 2022-12-21 Title: Incorrect Access Control Severity: low Product: Zammad 5.3.x Fixed in: Zammad 5.3.1 References: → CVE-2022-48023 Vulnerability Descriptions Incorrect Access Control: Due to insufficient privilege verification, an authenticated attacker could perform changes on the tags of their customer tickets using the Zammad API. This is now corrected so that only agents with write permission may change ticket tags. 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-2022-12 Please send remarks on security issues exclusively to security@zammad.com.