---
id: CVE-2025-71385
title: >-
  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 respo…
summary: >-
  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 respo…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: netdata
product: netdata
affected:
  - netdata < 2.3.1
patched:
  - netdata 2.3.1
published: '2026-07-02'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T15:10:00.560'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-71385'
references:
  - url: >-
      https://github.com/netdata/netdata/commit/f82554fe9b21b5ae51a8663a3f4ddce84cac16af
    label: disclosure@vulncheck.com
  - url: 'https://github.com/netdata/netdata/pull/19919'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/netdata/netdata/releases/tag/v2.3.1'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/netdata-reflected-cross-site-scripting-via-love-parameter-in-ilove-svg-endpoint
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.0043
epssPercentile: 0.34843
ingestedAt: '2026-09-30T16:10:06.660Z'
---

## Overview

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.

## Affected

- `netdata < 2.3.1`

## Remediation

Upgrade past the affected range:

- `netdata 2.3.1`