CVE-2018-3830 Cross-site scripting in Kibana

Medium 6.1 Published Updated

Attackers can execute scripts via the source field formatter to steal data or perform actions on behalf of other Kibana users.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2018-3830?

CVE-2018-3830 is a medium-severity cross-site scripting vulnerability in Elastic Kibana, published on 19 Sep 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Kibana versions 5.3.0 to 6.4.1 had a cross-site scripting (XSS) vulnerability via the source field formatter that could allow an attacker to obtain sensitive information from or perform destructive actions on behalf of other Kibana users.

Weakness: CWE-79

Which versions are affected by CVE-2018-3830?

It affects 2 products.

Products include Elastic Kibana, Redhat Openshift Container Platform.

How do I fix CVE-2018-3830?

Upgrade to a fixed version.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2018-3830 being exploited?

There is no known exploitation of CVE-2018-3830 in the wild and no public exploit code.

All Elastic Kibana vulnerabilities

Sources

Also known as GHSA-p82g-h4qx-f53f.

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