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CVE-2026-26989

PoC —
CVSS 3.1
4.8 medium
EPSS
<1%p15
Published
()
Modified
Description

LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 25.12.0 and below are affected by a Stored Cross-Site Scripting (XSS) vulnerability in the Alert Rules workflow. An attacker with administrative privileges can inject malicious scripts that execute in the browser context of any user who accesses the Alert Rules page. This issue has been fixed in version 26.2.0.

Vendors
librenms
Products
librenms
Weakness
CWE-79
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
NVD CVE.org GitHub PoCs EPSS (0.2%)

In the news

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