CVE-2023-53689

4.8 MEDIUM
Published: October 30, 2025 Modified: November 06, 2025

Description

Nagios Fusion versions prior toΒ 4.2.0 contain a reflected cross-site scripting (XSS) vulnerability in the license key configuration flow that can result in execution of attacker-controlled script in the browser of a user who follows a crafted URL. While the application server itself is not directly corrupted by the reflected XSS, the resulting browser compromise can lead to credential/session theft and unauthorized administrative actions.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://www.nagios.com/changelog/nagios-fusion/
Source: disclosure@vulncheck.com
Release Notes
https://www.nagios.com/products/security/#fusion
Source: disclosure@vulncheck.com
Vendor Advisory

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
4.8 / 10.0
EPSS (Exploit Probability)
0.1%
34th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

nagios