CVE-2026-26991 LibreNMS vulnerable to Stored Cross-site Scripting through unsanitized /device-groups name

LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. In versions 26.1.1 and below, the device group name is not sanitized, allowing attackers with admin privileges to perform Stored Cross-Site Scripting XSS attacks. When a user adds a device group, an HTTP POST request is...

GHSA-5PQF-54QP-32WX LibreNMS /device-groups name Stored Cross-Site Scripting

Summary /device-groups name Stored Cross-Site Scripting - HTTP POST - Request-URIs: "/device-groups" - Vulnerable parameters: "name" - Attacker must be authenticated with "admin" privileges. - When a user adds a device group, an HTTP POST request is sent to the Request-URI "/device-groups". The...

PT-2026-20788

Name of the Vulnerable Software and Affected Versions LibreNMS versions 26.1.1 and below Description LibreNMS, an auto-discovering PHP/MySQL/SNMP based network monitoring tool, contains a Stored Cross-Site Scripting XSS issue. The device group name is not sanitized, allowing attackers with admin...

Cross-site Scripting (XSS)

Overview librenms/librenms is a fully featured network monitoring system that provides a wealth of features and device support. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the Device Group Name. This is due to missing sanitization. Details Cross-site scripting...