CVE-2025-39663
8.5
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Summary
Cross-Site Scripting (XSS) vulnerability in Checkmk's distributed monitoring allows a compromised remote site to inject malicious HTML code into service outputs in the central site. Affecting Checkmk before 2.4.0p14, 2.3.0p39, 2.2.0 and 2.1.0 (eol).
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Checkmk GmbH | Checkmk | 2.4.0 < 2.4.0p14 | affected |
| Checkmk GmbH | Checkmk | 2.3.0 < 2.3.0p39 | affected |
| Checkmk GmbH | Checkmk | 2.2.0 | affected |
| Checkmk GmbH | Checkmk | 2.1.0 | affected |
Weaknesses
- CWE-80: CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: total
Additional References
CVE Program Container
Additional References
References
- https://checkmk.com/werk/17998
- https://github.com/sbaresearch/advisories/tree/82fd27e4570433464c30b35150b197db9a850f4e/2025/SBA-ADV-20250729-01_Checkmk_Cross_Site_Scripting
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