Improper Authentication in Opencast - CVE-2020-5206
Published: January 29, 2020 / Updated: April 23, 2026
Vulnerability identifier: #VU127014
CSH Severity: High
CVSS v4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-5206
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authentication and access non-public content.
The vulnerability exists due to improper authentication in endpoints with anonymous access when processing a remember-me cookie with an arbitrary username. A remote attacker can supply a forged remember-me cookie to bypass authentication and access non-public content.
The issue occurs only for endpoints that allow anonymous access.
Affected software
Opencast
How to mitigate CVE-2020-5206
Install security update from vendor's website.
Opencast - addressed in versions 7.6, 8.1