CVE-2026-3466— Cross-site scripting in dashlet title
Quick assessment
Affected
Checkmk GmbH Checkmk
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Checkmk是Checkmk公司的一个 IT 监控平台。 Checkmk 2.2.0版本、2.3.0p46之前版本、2.4.0p25之前版本和2.5.0b3之前版本存在安全漏洞，该漏洞源于仪表板小部件标题链接清理不足，可能导致具有仪表板创建权限的攻击者通过诱使受害者点击共享仪表板上的特制链接来执行存储型跨站脚本攻击。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
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I. Basic Information for CVE-2026-3466
Vulnerability Information
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Vulnerability Title
Cross-site scripting in dashlet title
Source: CVE Program / CVE List V5
Vulnerability Description
Insufficient sanitization of dashboard dashlet title links in Checkmk 2.2.0 (EOL), Checkmk 2.3.0 before 2.3.0p46, Checkmk 2.4.0 before 2.4.0p25, and Checkmk 2.5.0 (beta) before 2.5.0 allows an attacker with dashboard creation privileges to perform stored cross-site scripting (XSS) attacks by tricking a victim into clicking a crafted dashlet title link on a shared dashboard.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Checkmk 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Checkmk是Checkmk公司的一个 IT 监控平台。 Checkmk 2.2.0版本、2.3.0p46之前版本、2.4.0p25之前版本和2.5.0b3之前版本存在安全漏洞，该漏洞源于仪表板小部件标题链接清理不足，可能导致具有仪表板创建权限的攻击者通过诱使受害者点击共享仪表板上的特制链接来执行存储型跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Checkmk GmbH | Checkmk | 2.2.0 | - |
|
II. Public POCs for CVE-2026-3466
| # | POC Description | Source Link | Shenlong Link |
|---|
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V. Comments for CVE-2026-3466
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