Improper access control in Opencast - CVE-2020-5231
Published: January 29, 2020 / Updated: April 23, 2026
Vulnerability identifier: #VU127013
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-5231
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to create new users.
The vulnerability exists due to improper access control in the user-utils endpoint when handling user creation requests. A remote user can send a crafted PUT request to create new users.
The issue affects users assigned the ROLE_COURSE_ADMIN role.
Affected software
Opencast
How to mitigate CVE-2020-5231
Install security update from vendor's website.
Opencast - addressed in versions 7.6, 8.1