LibreNMS v1.54 has XSS in the Create User, Inventory, Add Device, Notifications, Alert Rule, Create Maintenance, and Alert Template sections of the admin console. This could lead to cookie stealing and other malicious actions. This vulnerability can be exploited with an authenticated account.
Severity
CVSS 3.0
5.4 medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
0.6% chance of exploitation in the next 30 days; higher than 50% of CVEs (scores of 2026-10-31)