CVE-2024-13993
Medium
Description
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 victim’s browser within the Nagios XI origin. The issue is observable under legacy browser behaviors; modern browsers may mitigate some vectors.
SeverityMedium
CVSS6.1
Exploit probability—
ProductNagios Xi
PublishedOct 30, 2025
First seenOct 30, 2025
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- nagios nagios_xi2024 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| nagios nagios_xi | v < 2024, 2024 | 2024 |
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