What is CVE-2020-5222?

CVE-2020-5222 is a medium-severity vulnerability in Apereo Opencast, classified under Use of Hard-coded Credentials. CVSS score: 6.8/10. Published 2020-01-30.

How severe is CVE-2020-5222?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Vulnerability in Apereo Opencast

CVE-2020-5222

Opencast before 7.6 and 8.1 enables a remember-me cookie based on a hash created from the username, password, and an additional system key. This means that an attacker getting access to a remember-me token for one server can get access to all servers which allow log-in using the same credentials without ever needing the credentials. This problem is fixed in Opencast 7.6 and Opencast 8.1

Published 2020-01-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.009 (59.4th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Apereo Opencast — versions 8.0
Opencast — versions < 7.6, >= 8.0, < 8.1

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

github.com/opencast/opencast/security/advisories/GHSA-mh8g-hprg-8363 (Third Party Advisory, Mitigation)
github.com/opencast/opencast/commit/1a7172c95af8d542a77ae5b153e4c834dd4788a6 (Patch)

Frequently asked questions

What is CVE-2020-5222?: CVE-2020-5222 is a medium-severity vulnerability in Apereo Opencast, classified under Use of Hard-coded Credentials. CVSS score: 6.8/10. Published 2020-01-30.
How severe is CVE-2020-5222?: Medium severity. CVSS v3 base score is 6.8 out of 10.