CVE-2020-5231: Apereo Opencast

Medium severity, CVSS 6.5. EPSS: 0.6% chance of exploitation in the next 30 days.

In Opencast before 7.6 and 8.1, users with the role ROLE_COURSE_ADMIN can use the user-utils endpoint to create new users not including the role ROLE_ADMIN. ROLE_COURSE_ADMIN is a non-standard role in Opencast which is referenced neither in the documentation nor in any code (except for tests) but only in the security configuration. From the name – implying an admin for a specific course – users would never expect that this role allows user creation. This issue is fixed in 7.6 and 8.1 which both ship a new default security configuration.

Affected products

• Apereo Opencast: before 7.6 (fixed in 7.6); version 8.0 only

Published 2020-01-30. Last modified 2026-06-17.