CVE-2021-38156 Cross-site scripting in n/a

Medium 5.4 Published Updated

Cross-site scripting in Nagios XI dashboard editing allows attackers to execute scripts in admin sessions, potentially leading to account takeover.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-38156?

CVE-2021-38156 is a medium-severity cross-site scripting vulnerability in Nagios Nagios Xi, published on 15 Sep 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

In Nagios XI before 5.8.6, XSS exists in the dashboard page (/dashboards/#) when administrative users attempt to edit a dashboard.

Weakness: CWE-79

Which versions are affected by CVE-2021-38156?

It affects 1 product.

Products include Nagios Nagios Xi.

How do I fix CVE-2021-38156?

No fix has been published for CVE-2021-38156 yet. Limit exposure of the affected software until one is available.

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-2021-38156 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-38156 exists.

Public exploit code: 1 Nuclei template.

All Nagios Nagios Xi vulnerabilities

Sources

Also known as GHSA-2cr4-q4vr-2q6r.

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