CVE-2026-84193: medium-severity vulnerability in librenms
LibreNMS through 26.2.0 Stored Cross-Site Scripting via SNMP
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.8epss 0.3%
LibreNMS through 26.2.0 contains a stored cross-site scripting vulnerability in legacy PHP template pages that render unescaped SNMP-sourced data fields including BGP peer descriptions, VRF names, process information, and SLA tags. Attackers with device management access or network access to enroll a rogue SNMP device can inject malicious JavaScript that executes when admins view affected routing and device pages, enabling credential theft and CSRF token exfiltration.
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Affected products
librenms · librenmsRelated CVEs — librenms
In the same product, most dangerous first.
CVE-2024-49754HIGHLibreNMS has a stored XSS ('Cross-site Scripting') in librenms/includes/html/pages/api-access.inc.phpEPSS 73.9%CVE-2025-23200MEDIUMStored XSS-LibreNMS-Misc Section in librenmsEPSS 49.3%CVE-2024-50352MEDIUMLibreNMS has a Stored XSS ('Cross-site Scripting') in librenms/includes/html/pages/device/overview/services.inc.phpEPSS 41.4%CVE-2024-32479HIGHLibreNMS's Improper Sanitization on Service template name leads to Stored XSSEPSS 34.1%CVE-2024-47525HIGHStored XSS ('Cross-site Scripting') in librenms/includes/html/print-alert-rules.phpEPSS 29.6%CVE-2024-32480HIGHLibreNMS's Time-Based Blind SQL injection leads to database extractionEPSS 20.3%