Checkmk NagVis Reflected Cross-site Scripting
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Checkmk GmbH | NagVis | NagVis 1.9.40 to before 1.9.42; Checkmk 2.3.0p2 to before 2.3.0p10 | 1.9.42, 2.3.0p10 | Patch available | CNA |
- NagVis VendorCheckmk GmbH Affected NagVis 1.9.40 to before 1.9.42; Checkmk 2.3.0p2 to before 2.3.0p10 Fixed in 1.9.42, 2.3.0p10 Patch available CNA
Remediation
- Fix · CNA NagVis (Checkmk) Fixed in 1.9.42, 2.3.0p10
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Checkmk NagVis 1.9.42, 2.3.0p10
2 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM
Other records, highest priority first
- TI-2024-12762 Checkmk NagVis Remote Code ExecutionPriority HIGH 67
Timeline
- 2026-10-02 Threatist record created from CVE-2024-13722
- 2026-10-03 Alias added: GHSA-237v-gpwr-jc57
References
More Checkmk GmbH vulnerabilities
- TI-2025-26345 Cross Site Scripting through compromised remote site CVSS 4.0HIGH 8.5
- TI-2025-40190 Cross-site scripting in HTML logs of Synthetic Monitoring test services CVSS 4.0HIGH 7.3
- TI-2024-12762 Checkmk NagVis Remote Code Execution CVSS 3.1HIGH 7.2
- TI-2024-19037 Brute-force protection ineffective for some login methods CVSS 3.1CRITICAL 9.8
- TI-2024-05712 local IP restriction of internal HTTP endpoints CVSS 3.1CRITICAL 9.8
- TI-2021-17818 The web management console of CheckMK Enterprise Edition (versions 1.5.0 to 2.0.0p9) does… CVSS 3.1HIGH 8.8
Sources
- CVE-2024-13722 · CVE Program
- CVE-2024-13722 · NVD
- FIRST EPSS
- GHSA-237v-gpwr-jc57 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences