CVE-2021-47694

Nagios XI < 5.8.6 Core Config Manager (CCM) Reflected XSS via Test Command

State: Published
Severity: 5.1 Medium
Published: Oct 30, 2025
Updated: Nov 17, 2025
Reserved: Oct 29, 2025

Description

The Core Config Manager (CCM) in Nagios XI versions prior to CCM 3.1.4 / Nagios XI 5.8.6 contains a reflected cross-site scripting (XSS) vulnerability via the Test Command functionality. 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.

Scores

CVSS	Score	Vector	Source
4.0	5.1 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N	VulnCheck

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
CWE-116 Improper Encoding or Escaping of Output

Affected Products

Product	Versions
XINagios	before 5.8.6Affected

References

https://www.nagios.com/changelog/nagios-xi/release-notespatch
https://www.vulncheck.com/advisories/nagios-xi-ccm-reflected-xss-via-test-commandthird-party-advisory

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