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CVE-2025-40894— HTML injection in Alerted Nodes Dashboard in Guardian/CMC before 25.6.0

Quick assessment

Affected
Nozomi Networks Guardian
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.

Nozomi Networks CMC和Nozomi Networks Guardian都是美国Nozomi Networks公司的产品。Nozomi Networks CMC是一款网络管理平台。Nozomi Networks Guardian是一款防护软件。 Nozomi Networks CMC和Nozomi Networks Guardian存在跨站脚本漏洞，该漏洞源于Alerted Nodes Dashboard功能输入参数验证不当，可能导致经过身份验证的恶意用户注入HTML标签并实施钓鱼或开放重

CVSS 4.4 · Medium EPSS 0.17% · P5

Affected Version Matrix 2

VendorProduct Version RangeStatus
Nozomi Networks CMC < 25.6.0 affected
Nozomi Networks Guardian < 25.6.0 affected
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I. Basic Information for CVE-2025-40894

Vulnerability Information
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Vulnerability Title
HTML injection in Alerted Nodes Dashboard in Guardian/CMC before 25.6.0
Source: CVE Program / CVE List V5
Vulnerability Description
A Stored HTML Injection vulnerability was discovered in the Alerted Nodes Dashboard functionality due to improper validation on an input parameter. A malicious authenticated user with the required privileges could edit a node label to inject HTML tags. If the system is configured to use the Alerted Nodes Dashboard, and alerts are reported for the affected node, then the injected HTML may render in the browser of a victim user interacting with it, enabling phishing and possibly open redirect attacks. Full XSS exploitation and direct information disclosure are prevented by the existing input validation and Content Security Policy configuration.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A: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
Nozomi Networks CMC和Nozomi Networks Guardian 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nozomi Networks CMC和Nozomi Networks Guardian都是美国Nozomi Networks公司的产品。Nozomi Networks CMC是一款网络管理平台。Nozomi Networks Guardian是一款防护软件。 Nozomi Networks CMC和Nozomi Networks Guardian存在跨站脚本漏洞，该漏洞源于Alerted Nodes Dashboard功能输入参数验证不当，可能导致经过身份验证的恶意用户注入HTML标签并实施钓鱼或开放重
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
Nozomi Networks Guardian 0 ~ 25.6.0 -
Nozomi Networks CMC 0 ~ 25.6.0 -

II. Public POCs for CVE-2025-40894

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III. Intelligence Information for CVE-2025-40894

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Vendor Advisories for CVE-2025-40894 (1)

Same Patch Batch · Nozomi Networks · 2026-03-04 · 3 CVEs total

CVE-2025-40896 6.5 MEDIUM Lack of TLS certificate validation when connecting Arc to a Guardian or CMC, in Arc before
CVE-2025-40895 4.8 MEDIUM HTML injection in Sensor Map in CMC before 25.6.0

IV. Related Vulnerabilities

Same product: Guardian
Same vendor: Nozomi Networks
Same weakness: CWE-79

V. Comments for CVE-2025-40894

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