PT-2026-84151 · Librenms · Librenms

K1Bana

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CVE-2026-84188

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Published

2026-08-18

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Updated

2026-09-01

CVSS v3.1

4.8

Medium

VectorAV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Name of the Vulnerable Software and Affected Versions LibreNMS versions prior to 26.7.0
Description A stored cross-site scripting issue exists where configuration settings for graph descr.<graphtype> are echoed without HTML escaping in the file includes/html/pages/graphs.inc.php. This allows an administrator to store a malicious HTML payload that executes in the browser of any authenticated user who views the affected graph type.
Recommendations Update to version 26.7.0.

Exploit

Fix

XSS

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Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-84188
GHSA-7CJ5-V4PP-V632

Affected Products

Librenms