CVE-2021-38156

MEDIUM NUCLEI

Nagios XI < 5.8.6 - Stored Cross-Site Scripting in Dashboard Editor

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2021-38156 has a Nuclei detection template available — see the Nuclei card below for the Shodan/FOFA recon queries.

Description

In Nagios XI before 5.8.6, XSS exists in the dashboard page (/dashboards/#) when administrative users attempt to edit a dashboard.

Nuclei Templates (1)

Nagios XI < 5.8.6 - Cross-Site Scripting
MEDIUMVERIFIEDby ritikchaddha
Shodan: http.title:"nagios xi"
FOFA: app="nagios-xi"

References (2)

Core 2
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://www.nagios.com/downloads/nagios-xi/change-log/
Exploit, Third Party Advisory x_refsource_misc
https://raxis.com/blog/cve-2021-38156

Scores

CVSS v3 5.4
EPSS 0.8894
EPSS Percentile 99.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
nagios/nagios_xi < 5.8.6
Published Sep 15, 2021
Tracked Since Feb 18, 2026