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CVE-2025-71385— Netdata < 2.3.1 - Reflected Cross-Site Scripting via love Parameter in ilove.svg Endpoint

CVSS 6.1 · Medium EPSS 0.22% · P13

Affected Version Matrix 1

VendorProductVersion RangeStatus
netdatanetdata< 2.3.1affected
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I. Basic Information for CVE-2025-71385

Vulnerability Information
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Vulnerability Title
Netdata < 2.3.1 - Reflected Cross-Site Scripting via love Parameter in ilove.svg Endpoint
Source: NVD (National Vulnerability Database)
Vulnerability Description
Netdata before 2.3.1 reflects the user-supplied love query parameter of the api/v2/ilove.svg and api/v3/ilove.svg endpoints verbatim into the generated SVG document (into a text element) without HTML or XML escaping, and serves the response with Content-Type image/svg+xml. An attacker can craft a URL such as /api/v2/ilove.svg?love=<script>...</script>; when a victim navigates to it the injected script executes in the victim browser in the origin of the Netdata instance (reflected cross-site scripting). These endpoints are registered with HTTP_ACL_NOCHECK and anonymous access and, because bearer-token protection is disabled by default, are reachable without authentication on a default Netdata agent. The issue was resolved by removing the ilove endpoint.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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
Netdata 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Netdata是Netdata公司开源的一个高保真基础设施监控和故障排除应用程序。 Netdata 2.3.1之前版本存在跨站脚本漏洞，该漏洞源于未对api/v2/ilove.svg和api/v3/ilove.svg端点中用户提供的love参数进行HTML或XML转义，容易受到反射型跨站脚本攻击。
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

VendorProductAffected VersionsCPESubscribe
netdatanetdata 0 ~ 2.3.1 -

II. Public POCs for CVE-2025-71385

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III. Intelligence Information for CVE-2025-71385

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Patches & Fixes for CVE-2025-71385 (1)

Vendor Advisories for CVE-2025-71385 (1)

Vendor Pages for CVE-2025-71385 (1)

IV. Related Vulnerabilities

Same product: netdata
Same vendor: netdata
Same weakness: CWE-79

V. Comments for CVE-2025-71385

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