CVE-2024-38859 XSS in view page with SLA column

Medium 4.8 Published Updated

Attackers can inject scripts into SLA column titles, leading to arbitrary script execution when other users view cloned pages.

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-2024-38859?

CVE-2024-38859 is a medium-severity cross-site scripting vulnerability in Checkmk Checkmk, published on 26 Aug 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

XSS in the view page with the SLA column configured in Checkmk versions prior to 2.3.0p14, 2.2.0p33, 2.1.0p47 and 2.0.0 (EOL) allowed malicious users to execute arbitrary scripts by injecting HTML elements into the SLA column title. These scripts could be executed when the view page was cloned by other users.

Weakness: CWE-79, CWE-80

Which versions are affected by CVE-2024-38859?

It affects 1 product.

Products include Checkmk Checkmk.

How do I fix CVE-2024-38859?

No fix has been published for CVE-2024-38859 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-2024-38859 being exploited?

There is no known exploitation of CVE-2024-38859 in the wild and no public exploit code.

All Checkmk Checkmk vulnerabilities

Sources

Also known as GHSA-5554-3cr8-7rwc, UBUNTU-CVE-2024-38859.

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