CVE-2025-47931: Librenms

Medium severity, CVSS 6.1. EPSS: 11.9% chance of exploitation in the next 30 days.

LibreNMS is PHP/MySQL/SNMP based network monitoring software. LibreNMS v25.4.0 and prior suffers from a Stored Cross-Site Scripting (XSS) Vulnerability in the `group name` parameter of the `http://localhost/poller/groups` form. This vulnerability allows attackers to inject malicious scripts into web pages viewed by other users. LibreNMS v25.5.0 contains a patch for the issue.

Affected products

• Librenms Librenms: before 25.5.0 (fixed in 25.5.0)

Published 2025-05-17. Last modified 2026-06-17.