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Nagios XI Cross-Site Scripting Vulnerability in Tools Menu

Vulnerability

A cross-site scripting (XSS) vulnerability has been identified in Nagios XI versions prior to 2012R2.6. The issue arises from insufficient validation or escaping of user-supplied input in the Tools Menu of the web interface. This vulnerability allows an attacker to inject and execute arbitrary scripts in the context of the victim's browser.

Impact

Exploitation of this vulnerability allows for cross-site scripting, where an attacker can inject malicious scripts that are executed in the context of the user's browser.

Remediation

Users can upgrade to Nagios XI version 2012R2.6 or later to address this vulnerability.

Added: Oct 31, 2025, 12:08 AM
Updated: Oct 31, 2025, 12:08 AM

Vulnerability Rating

Custom Algorithm
spread
5.0
impact
1.0
exploitability
5.0
remediation
0.0
relevance
0.8
threat
0.0
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.