CVE-2021-25299

MEDIUM NUCLEI

Nagios XI xi-5.7.5 - XSS

Title source: llm

Description

Nagios XI version xi-5.7.5 is affected by cross-site scripting (XSS). The vulnerability exists in the file /usr/local/nagiosxi/html/admin/sshterm.php due to improper sanitization of user-controlled input. A maliciously crafted URL, when clicked by an admin user, can be used to steal his/her session cookies or it can be chained with the previous bugs to get one-click remote command execution (RCE) on the Nagios XI server.

Nuclei Templates (1)

Nagios XI 5.7.5 - Cross-Site Scripting

MEDIUMVERIFIEDby ritikchaddha

Shodan: title:"Nagios XI" || http.title:"nagios xi"

FOFA: title="nagios xi" || app="nagios-xi"

References (4)

[Product] http://nagios.com

[Exploit, Third Party Advisory, VDB Entry] http://packetstormsecurity.com/files/161561/Nagios-XI-5.7.5-Remote-Code-Execution.html

[Product] https://assets.nagios.com/downloads/nagiosxi/versions.php

[Exploit, Third Party Advisory] https://github.com/fs0c-sh/nagios-xi-5.7.5-bugs/blob/main/README.md

View Exploit ZIP pw:eip

Scores

CVSS v3 6.1

EPSS 0.8516

EPSS Percentile 99.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Details

CWE

CWE-79

Status published

Products (1)

nagios/nagios_xi 5.7.5

Published Feb 15, 2021

Tracked Since Feb 18, 2026