CVE-2025-56432 Cross-site scripting in n/a
Remote attackers can execute arbitrary JavaScript in logged-in users' sessions via crafted URLs in Nagios XI, potentially leading to account takeover.
- 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
- None listed
What is CVE-2025-56432?
CVE-2025-56432 is a medium-severity cross-site scripting vulnerability in Nagios Nagios Xi, published on 26 Aug 2025. 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
A cross-site scripting (XSS) vulnerability exists in Nagios XI 2024R2. The vulnerability allows remote attackers to execute arbitrary JavaScript in the context of a logged-in user's session via a specially crafted URL. The issue resides in a web component responsible for rendering performance-related data.
Weakness: CWE-79
Which versions are affected by CVE-2025-56432?
It affects 1 product.
Products include Nagios Nagios Xi.
How do I fix CVE-2025-56432?
No fix has been published for CVE-2025-56432 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-2025-56432 being exploited?
There is no known exploitation of CVE-2025-56432 in the wild and no public exploit code.
Other vulnerabilities in Nagios Nagios Xi
Sources
Also known as GHSA-wwfx-23mx-7663.