CVE-2021-47689

Medium · 5.4

CVSS

5.4

EPSS

0.4%

Published

Oct 30, 2025

CISA due date

—

The record

The Core Config Manager (CCM) in Nagios XI versions prior to CCM 3.1.0 / Nagios XI 5.8.0 contais a cross-site scripting (XSS) vulnerability in the Templates pages, specifically in the UI logic that renders and handles the Active/Actions buttons. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.

Affected packages

Ecosystem	Package	Introduced	Fixed