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CVE-2026-26992

MEDIUM

4.8

Descricao

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 sent to the Request-URI "/port-groups". The name of the newly created port group is stored in the value of the name parameter. After the port group is created, the entry is displayed along with relevant buttons such as Edit and Delete. This issue has been fixed in version 26.2.0.

Detalhes CVE

Pontuacao CVSS v3.14.8

SeveridadeMEDIUM

Vetor CVSSCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosHIGH

Interacao do usuarioREQUIRED

Publicado2/20/2026

Ultima modificacao2/20/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

librenms:librenms

Fraquezas (CWE)

CWE-79

Referencias

https://github.com/librenms/librenms/commit/882fe6f90ea504a3732f83caf89bba7850a5699f(security-advisories@github.com)

https://github.com/librenms/librenms/pull/19042(security-advisories@github.com)

https://github.com/librenms/librenms/releases/tag/26.2.0(security-advisories@github.com)

https://github.com/librenms/librenms/security/advisories/GHSA-93fx-g747-695x(security-advisories@github.com)

Correlacoes IOC

Sem correlacoes registradas

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