{"cve":"CVE-2020-5231","nvd":{"published":"2020-01-30T22:15:10.220","modified":"2026-06-17T03:21:04.517","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","score":6.5},"cwes":["CWE-276","CWE-285"],"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"],"products":["apereo:opencast"],"source":"nvd","synced_at":"2026-10-19T21:01:01.339895972+00:00"},"epss":{"cve":"CVE-2020-5231","score":0.00625,"percentile":0.49989,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-94qw-r73x-j7hg","url":"https://osv.dev/vulnerability/GHSA-94qw-r73x-j7hg","summary":"Users with ROLE_COURSE_ADMIN can create new users in Opencast","modified":"2026-09-10T03:48:42.029744564Z","packages":[{"ecosystem":"Maven","name":"org.opencastproject:opencast-kernel","purl":"pkg:maven/org.opencastproject/opencast-kernel","ranges":["<7.6"],"fixed":["7.6"]},{"ecosystem":"Maven","name":"org.opencastproject:opencast-kernel","purl":"pkg:maven/org.opencastproject/opencast-kernel","ranges":[">=8.0 <8.1"],"fixed":["8.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}