Nagios XI <2024R1.1.2 Reflected XSS via login page
CVE-2024-13993 Published on October 30, 2025
Nagios XI < 2024R1.1.2 Reflected XSS via Login Page on Older Browsers
Nagios XI versions prior to < 2024R1.1.2 are vulnerable to a reflected cross-site scripting (XSS) via the login page when accessed with older web browsers. Insufficient validation or escaping of user-supplied input reflected by the login page can allow an attacker to craft a malicious link that, when visited by a victim, executes arbitrary JavaScript in the victims browser within the Nagios XI origin. The issue is observable under legacy browser behaviors; modern browsers may mitigate some vectors.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2024-13993 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2024-13993
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Affected Versions
Nagios XI:- Before 2024R1.1.2 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.