---
id: CVE-2025-34278
title: "Nagios Network Analyzer versions prior to\_2024R1 contain a stored cross-site scripting (XSS) vulnerability in the Source Groups page\_(percentile calculator menu).\_An attacker can supply a malicious payload which is stored by the applicat…"
summary: "Nagios Network Analyzer versions prior to\_2024R1 contain a stored cross-site scripting (XSS) vulnerability in the Source Groups page\_(percentile calculator menu).\_An attacker can supply a malicious payload which is stored by the applicat…"
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: nagios
product: network_analyzer
affected:
  - network_analyzer < 2024
patched:
  - network_analyzer 2024
published: '2025-10-30'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T21:10:00.200'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-34278'
references:
  - url: 'https://www.nagios.com/changelog/#network-analyzer'
    label: disclosure@vulncheck.com
  - url: 'https://www.nagios.com/products/security/#network-analyzer'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/nagios-network-analyzer-source-groups-percentile-calculator-menu-stored-xss
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00756
epssPercentile: 0.53732
ingestedAt: '2026-10-07T21:54:14.906Z'
---

## Overview

Nagios Network Analyzer versions prior to 2024R1 contain a stored cross-site scripting (XSS) vulnerability in the Source Groups page (percentile calculator menu). An attacker can supply a malicious payload which is stored by the application and later rendered in the context of other users. When a victim views the affected page the injected script executes in the victim's browser context.

## Affected

- `network_analyzer < 2024`

## Remediation

Upgrade past the affected range:

- `network_analyzer 2024`