CVE-2023-53690 MEDIUM

CVE-2023-53690: Nagios Fusion < 4.2.0 LDAP/AD Integration Stored XSS

Vendor Nagios
Product Fusion
Weakness CWE-79 · XSS
Published October 30, 2025
Last update November 17, 2025

CVSS base score

6.2/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

What the vulnerability does

01Description

Nagios Fusion versions prior to 4.2.0 contain a stored cross-site scripting (XSS) vulnerability in the LDAP/AD authentication-server configuration. Unsanitized user input can be stored and later rendered in the administrative UI, causing JavaScript to execute in the browser of any user who views the affected page. An attacker who can add authentication servers via LDAP/AD integration could persist a malicious payload that executes in the context of other users' browsers.

Key dates

02Disclosure timeline

October 30, 2025 CVE published
November 17, 2025 Record updated