CVE-2025-64999 (GCVE-0-2025-64999)

Vulnerability from cvelistv5 – Published: 2026-02-26 10:26 – Updated: 2026-02-26 14:28
VLAI?
Title
Cross-site scripting in HTML logs of Synthetic Monitoring test services
Summary
Improper neutralization of input in Checkmk versions 2.4.0 before 2.4.0p22, and 2.3.0 before 2.3.0p43 allows an attacker that can manipulate a host's check output to inject malicious JavaScript into the Synthetic Monitoring HTML logs, which can then be accessed via a crafted phishing link.
Severity ?
7.3 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:L/SA:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
Vendor Product Version
Checkmk GmbH Checkmk Affected: 2.4.0 , < 2.4.0p22 (semver)
Affected: 2.3.0 , < 2.3.0p43 (semver)
Create a notification for this product.
Credits
Lisa Gnedt (SBA Research)
Show details on NVD website
To clipboard 

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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