CVE-2026-84189 LibreNMS before 26.7.0 Stored XSS via Oxidized API

LibreNMS through 26.4.0 renders JSON fields name, ip, model, author, commit message returned by the admin-configurable Oxidized integration URL oxidized.url into the device showconfig page without applying htmlspecialchars. An administrator who points the Oxidized URL at an attacker-controlled...

LibreNMS: Cross-Site Scripting in ShowConfigController

Summary A Stored Cross-Site Scripting XSS vulnerability exists in the ShowConfig page of devices affected by the RANCID Integration settings. The application fails to properly sanitise the rancidrepourl configuration value. When a user navigates to a device's configuration page, this unsanitised...