CVE-2020-36862

Nagios XI versions prior to 5.6.11 contain unauthenticated vulnerabilities in the Highcharts local exporting tool. Crafted export requests could (1) inject script into exported/returned content due to insufficient output encoding (XSS), and (2) cause the server to fetch attacker-specified URLs (SSRF), potentially accessing internal network resources. An unauthenticated remote attacker can leverage these issues to execute script in a user's browser when the exported content is viewed and to disclose sensitive information reachable from the export server via SSRF.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://www.nagios.com/changelog/nagios-xi/	Release Notes
https://www.vulncheck.com/advisories/nagios-xi-unauthenticated-xss-and-ssrf-via-highcharts	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:nagios:nagios_xi:*:*:*:*:*:*:*:*

History

18 Oct 2026, 00:10

Type	Values Removed	Values Added
Summary		(es) Las versiones de Nagios XI anteriores a la 5.6.11 contienen vulnerabilidades no autenticadas en la herramienta de exportación local de Highcharts. Solicitudes de exportación manipuladas podrían (1) inyectar scripts en el contenido exportado/devuelto debido a una codificación de salida insuficiente (XSS), y (2) hacer que el servidor obtenga URLs especificadas por el atacante (SSRF), accediendo potencialmente a recursos de red internos. Un atacante remoto no autenticado puede aprovechar estos problemas para ejecutar scripts en el navegador de un usuario cuando se visualiza el contenido exportado y para divulgar información sensible accesible desde el servidor de exportación a través de SSRF.

Information

Published : 2025-10-30 22:15

Updated : 2026-10-18 00:10

NVD link : CVE-2020-36862

Mitre link : CVE-2020-36862

CVE.ORG link : CVE-2020-36862

JSON object : View

Products Affected

nagios

nagios_xi

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-918

Server-Side Request Forgery (SSRF)

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