CVE-2024-28831 XSS in confirmation pop-up
Stored XSS in Checkmk confirmation pop-ups allows users to execute arbitrary scripts via injected HTML, 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-2024-28831?
CVE-2024-28831 is a medium-severity cross-site scripting vulnerability in Checkmk Checkmk, published on 25 Jun 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
Stored XSS in some confirmation pop-ups in Checkmk before versions 2.3.0p7 and 2.2.0p28 allows Checkmk users to execute arbitrary scripts by injecting HTML elements into some user input fields that are shown in a confirmation pop-up.
Which versions are affected by CVE-2024-28831?
It affects 1 product.
Products include Checkmk Checkmk.
How do I fix CVE-2024-28831?
No fix has been published for CVE-2024-28831 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-2024-28831 being exploited?
There is no known exploitation of CVE-2024-28831 in the wild and no public exploit code.
Other vulnerabilities in Checkmk Checkmk
- CVE-2025-39666 omd: Local privilege escalation when executing omd commands as root
- CVE-2024-8606 Fix 2FA bypass via RestAPI
- CVE-2022-46836 PHP code injection in watolib
- CVE-2025-32919 Privilege Escalation in Windows License plugin for Checkmk Windows Agent
- CVE-2024-28827 Privilege escalation in Windows agent
Sources
Also known as GHSA-hx7g-cqpx-p72r, UBUNTU-CVE-2024-28831.