CVE-2026-33276— XSS in Unified Search via Unescaped Host/Service Names
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I. Basic Information for CVE-2026-33276
Vulnerability Information
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Vulnerability Title
XSS in Unified Search via Unescaped Host/Service Names
Source: NVD (National Vulnerability Database)
Vulnerability Description
Stored cross-site scripting (XSS) in Checkmk 2.5.0 (beta) before 2.5.0b2 allows authenticated users with permission to create hosts or services to execute arbitrary JavaScript in the browsers of other users performing searches in the Unified Search feature.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
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 2.5.0b2之前版本存在安全漏洞，该漏洞源于存储型跨站脚本问题，可能导致经过身份验证的用户在其他用户执行统一搜索时执行任意JavaScript。
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 | 2.5.0b1 ~ 2.5.0b2 | - |
II. Public POCs for CVE-2026-33276
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same product: Checkmk
- CVE-2026-33457
Potential livestatus injection in prediction graph page - CVE-2026-33456
Potential livestatus injection in notification test - CVE-2026-33455
Livestatus injection in monitoring quicksearch - CVE-2025-39666
omd: Local privilege escalation when executing omd commands - CVE-2026-3466
Cross-site scripting in dashlet title
Same vendor: Checkmk GmbH
- CVE-2026-33457
Potential livestatus injection in prediction graph page - CVE-2026-33456
Potential livestatus injection in notification test - CVE-2026-33455
Livestatus injection in monitoring quicksearch - CVE-2025-39666
omd: Local privilege escalation when executing omd commands - CVE-2026-3466
Cross-site scripting in dashlet title
Same weakness: CWE-79
- CVE-2026-8262
Devs Palace ERP Online chart-save cross site scripting - CVE-2026-8256
Devs Palace ERP Online mr-save cross site scripting - CVE-2026-8255
Devs Palace ERP Online add_new_customer cross site scripting - CVE-2026-8254
Devs Palace ERP Online sales_save cross site scripting - CVE-2026-8253
Devs Palace ERP Online purchase_save cross site scripting
V. Comments for CVE-2026-33276
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