CVE-2021-36091: Otrs

Medium severity, CVSS 4.3. EPSS: 0.7% chance of exploitation in the next 30 days.

Agents are able to list appointments in the calendars without required permissions. 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, before 6.0.32 (fixed in 6.0.32); from 7.0.0, before 7.0.28 (fixed in 7.0.28)

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