CVE-2020-36862

MEDIUM

Nagios XI < 5.6.11 - Unauthenticated Cross-Site Scripting and Server-Side Request Forgery via Highcharts Export Tool

Title source: llm
STIX 2.1

Description

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.

References (2)

Core 2
Core References
Release Notes release-notes patch
https://www.nagios.com/changelog/nagios-xi/

Scores

CVSS v3 6.1
EPSS 0.0006
EPSS Percentile 18.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-918 CWE-79
Status published
Products (1)
nagios/nagios_xi < 5.6.11
Published Oct 30, 2025
Tracked Since Feb 18, 2026