VULNERABILITY INTELLIGENCE
CVE-2026-84188
CVSS score4.8 MEDIUM
EPSS probability0.25%
CISA KEVNot currently listed
Published2026-09-01
Last modified2026-10-08
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Description
LibreNMS versions <= 26.4.0 contain a stored cross-site scripting vulnerability in the graph_descr.<graphtype> configuration settings, which are echoed verbatim without HTML escaping in includes/html/pages/graphs.inc.php. An administrator can store a malicious HTML payload that executes in the browser of any authenticated user who views the affected graph type. The issue is fixed in version 26.7.0.
Weakness classification
- disclosure@vulncheck.com: CWE-79