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Status published
Medium
CVE-2020-36861
Nagios XI < 5.7.5 Core Config Manager (CCM) XSS via Overlay Rendering and Notification/Check Period Pages
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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Affected Vendor
Nagios
View all reports →Affected Software
XI
Vulnerable Versions:
0
Timeline
Official Publish:
October 30th, 2025
Last Modified:
November 17th, 2025
Added to House:
July 21st, 2026