Vulnerability Monitor

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CVE-2020-36861

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.

Published

2025-10-30T22:15:38.847

Last Modified

2025-11-06T18:20:44.227

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 5.4 (MEDIUM)

Weaknesses

Type: Secondary
CWE-79

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	nagios	nagios_xi	< 5.7.5	Yes

References

https://www.nagios.com/changelog/nagios-xi/ Release Notes ([email protected])
https://www.vulncheck.com/advisories/nagios-xi-ccm-xss-via-overlay-rendering-and-notification-check-period-pages Third Party Advisory ([email protected])