CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NCVE-2020-5231
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.
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 49% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-276, CWE-285
- Published
- Modified
- Record from
- the NVD, synced
Affected
- apereo:opencast
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-94qw-r73x-j7hg | Maven | org.opencastproject:opencast-kernel | <7.6 | 7.6 |
| GHSA-94qw-r73x-j7hg | Maven | org.opencastproject:opencast-kernel | >=8.0 <8.1 | 8.1 |
References
- https://github.com/opencast/opencast/commit/72fad0031d8a82c860e2bde0b27570c5042320ee
- https://github.com/opencast/opencast/security/advisories/GHSA-94qw-r73x-j7hg
- https://github.com/opencast/opencast/commit/72fad0031d8a82c860e2bde0b27570c5042320ee
- https://github.com/opencast/opencast/security/advisories/GHSA-94qw-r73x-j7hg