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Security Database

CVE

CWE

Training

CVE-2020-36861

Published: Oct 30, 2025

Modified: Nov 17, 2025

PUBLISHED

Description

The Core Config Manager (CCM) in Nagios XI versions prior to CCM 3.0.8 / Nagios XI 5.7.5 contains multiple cross-site scripting (XSS) vulnerabilities in the overlay UI elements and the Notification/Check Period pages. 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.

Vendor	Product	Versions
Nagios	XI	affected `0 - < 5.7.5`

Weaknesses (CWE)

References

https://www.nagios.com/changelog/nagios-xi/

release-notes

patch

https://www.vulncheck.com/advisories/nagios-xi-ccm-xss-via-overlay-rendering-and-notification-check-period-pages

third-party-advisory

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