CVE-2024-13993
Nagios XI < 2024R1.1.2 Reflected XSS via Login Page on Older Browsers
- State
- Published
- Severity
- 5.1 Medium
- Published
- Oct 30, 2025
- Updated
- Nov 17, 2025
- Reserved
- Oct 22, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.1 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N | VulnCheck |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
XINagios |
|
References
- https://www.nagios.com/products/security/#nagios-xivendor-advisorypatch
- https://www.nagios.com/changelog/nagios-xi/release-notespatch
- https://www.vulncheck.com/advisories/nagios-xi-reflected-xss-via-login-page-on-older-browsersthird-party-advisory
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