What is CVE-2020-10743?

CVE-2020-10743 is a medium-severity vulnerability in Elastic Kibana, classified under CWE-358. CVSS score: 4.3/10. Published 2021-06-02.

How severe is CVE-2020-10743?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Elastic Kibana

CVE-2020-10743

It was discovered that OpenShift Container Platform's (OCP) distribution of Kibana could open in an iframe, which made it possible to intercept and manipulate requests. This flaw allows an attacker to trick a user into performing arbitrary actions in OCP's distribution of Kibana, such as clickjacking.

Published 2021-06-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Elastic Kibana
Red Hat Openshift Container Platform — versions 3.11.286, 4.6.1
Kibana — versions OpenShift Container Platform 3.11.286 and OpenShift Container Platform 4.6.1

Weakness classification (CWE)

References

bugzilla.redhat.com/show_bug.cgi (Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2020-10743?: CVE-2020-10743 is a medium-severity vulnerability in Elastic Kibana, classified under CWE-358. CVSS score: 4.3/10. Published 2021-06-02.
How severe is CVE-2020-10743?: Medium severity. CVSS v3 base score is 4.3 out of 10.