What is CVE-2020-4421?

CVE-2020-4421 is a medium-severity vulnerability in IBM Websphere Application Server, classified under Authentication Bypass by Spoofing. CVSS score: 5.4/10. Published 2020-05-06.

How severe is CVE-2020-4421?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Vulnerability in IBM Websphere Application Server

CVE-2020-4421

IBM WebSphere Application Liberty 19.0.0.5 through 20.0.0.4 could allow an authenticated user using openidconnect to spoof another users identify. IBM X-Force ID: 180084.

EPSS: 0.006 (46.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Ibm Websphere_application_server
Ibm Websphere Application Server Liberty — versions 20.0.0.4, 19.0.0.5

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

psirt@us.ibm.com (x_refsource_CONFIRM, Vendor Advisory)
psirt@us.ibm.com (VDB Entry, vdb-entry, Vendor Advisory, x_refsource_XF)

Frequently asked questions

What is CVE-2020-4421?: CVE-2020-4421 is a medium-severity vulnerability in IBM Websphere Application Server, classified under Authentication Bypass by Spoofing. CVSS score: 5.4/10. Published 2020-05-06.
How severe is CVE-2020-4421?: Medium severity. CVSS v3 base score is 5.4 out of 10.