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OpenAdvisories
Medium · 5.1 CVE-2020-36861 EUVD-2020-30812GHSA-p5jq-6372-24j5

Nagios XI < 5.7.5 Core Config Manager (CCM) XSS via Overlay Rendering and Notification/Check Period Pages

Published Oct 30, 2025 · Updated Nov 17, 2025 · Assigned by VulnCheck

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.

Affected products

VendorProductAffectedFixed
Nagios XI < 5.7.5 5.7.5

References