{"id":"CVE-2024-13993","details":"Nagios XI versions prior to \u003c 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.","modified":"2026-03-14T01:50:40.613408Z","published":"2025-10-30T22:15:44.623Z","references":[{"type":"ADVISORY","url":"https://www.nagios.com/changelog/nagios-xi/"},{"type":"ADVISORY","url":"https://www.nagios.com/products/security/#nagios-xi"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/nagios-xi-reflected-xss-via-login-page-on-older-browsers"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-13993.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"2024"}]},{"events":[{"introduced":"0"},{"last_affected":"2024-r1"}]},{"events":[{"introduced":"0"},{"last_affected":"2024-r1\\.0\\.1"}]},{"events":[{"introduced":"0"},{"last_affected":"2024-r1\\.1"}]},{"events":[{"introduced":"0"},{"last_affected":"2024-r1\\.1\\.1"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}