All vulnerabilities

Servers and applications

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.

Severity
Medium 5.1
Published
30 Oct 2025
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
5.7.5
Sources
NVD

Affected software

SoftwareAffected versions
Nagios XIServers and applications · cpe:a:nagios:nagios_xi
  • Every version before 5.7.5

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-36861
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-36861