Medium severity4.8NVD Advisory· Published Sep 1, 2026· Updated Sep 8, 2026

CVE-2026-84188

Description

LibreNMS versions <= 26.4.0 contain a stored cross-site scripting vulnerability in the graph_descr. 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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Librenms/Librenmsllm-fuzzy
Range: <=26.4.0

Patches

Vulnerability mechanics

References

github.com/librenms/librenms/security/advisories/GHSA-7cj5-v4pp-v632nvd
www.vulncheck.com/advisories/librenms-before-26.7.0-stored-xss-via-graph-descr-settingsnvd

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cvss	0.312
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000