CVE-2026-26992

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

CVE-2026-26992

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

CVE-2026-26992 LibreNMS has Stored Cross-Site Scripting via unsanitized /port-groups name

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

CVE-2026-26992

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

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 name parameter in the HTTP POST request to /port-groups. An attacker with admin...

LibreNMS /port-groups name Stored Cross-Site Scripting

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

GHSA-93FX-G747-695X LibreNMS /port-groups name Stored Cross-Site Scripting

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

PT-2026-20789

Name of the Vulnerable Software and Affected Versions LibreNMS versions 26.1.1 and below Description LibreNMS is a network monitoring tool. A stored cross-site scripting XSS issue exists due to insufficient sanitization of the port group name. An attacker with administrator privileges can inject...

Improper Access Control in librenms/librenms

Description Improper Access Control vulnerability in LibreNMS v22.1.0 allows attackers with the normal role/level to interact with port-groups functionality such as create, edit/modify and delete the existing port group. The port-groups functionality fails to enforce policy such that normal users...