CVE-2021-21443: Otrs

Medium severity, CVSS 4.3. EPSS: 0.8% chance of exploitation in the next 30 days.

Agents are able to list customer user emails without required permissions in the bulk action screen. This issue affects: OTRS AG ((OTRS)) Community Edition: 6.0.x version 6.0.1 and later versions. OTRS AG OTRS: 7.0.x versions prior to 7.0.27.

Affected products

• Otrs Otrs: from 6.0.0, up to and including 6.0.32; from 7.0.0, up to and including 7.0.27

Published 2021-07-26. Last modified 2026-06-17.