Improper access control in Opencast - CVE-2020-5228
Published: January 29, 2020 / Updated: April 23, 2026
Vulnerability identifier: #VU127019
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-5228
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose media and metadata.
The vulnerability exists due to improper access control in the OAI-PMH endpoint when handling unauthenticated requests. A remote attacker can access published media and metadata to disclose media and metadata.
OAI-PMH is part of the default workflow and is activated by default.
Affected software
Opencast
How to mitigate CVE-2020-5228
Install security update from vendor's website.
Opencast - addressed in versions 7.6, 8.1