CVE-2020-5206

CriticalCVSS 10.0/10Last modified Jun 17, 2026

Description

In Opencast before 7.6 and 8.1, using a remember-me cookie with an arbitrary username can cause Opencast to assume proper authentication for that user even if the remember-me cookie was incorrect given that the attacked endpoint also allows anonymous access. This way, an attacker can, for example, fake a remember-me token, assume the identity of the global system administrator and request non-public content from the search service without ever providing any proper authentication. This problem is fixed in Opencast 7.6 and Opencast 8.1

Metrics

CVSS 3.1 10.0/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Weakness enumeration

CWE-285CWE-287

Affected software

VendorProductVersions
opencastopencast< 7.6; >= 8.0, < 8.1

References

Timeline

Published
Jan 30, 2020
Last modified
Jun 17, 2026
NVD status
Modified

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