CVE-2025-55296

PoC —

CVSS 3.1

5.4 medium

EPSS

12%p96

Published

Aug 18, 2025 (Aug 18, 2025)

Modified

Jun 17, 2026

Description

librenms is a community-based GPL-licensed network monitoring system. A stored Cross-Site Scripting (XSS) vulnerability exists in LibreNMS (<= 25.6.0) in the Alert Template creation feature. This allows a user with the admin role to inject malicious JavaScript, which will be executed when the template is rendered, potentially compromising other admin accounts. This vulnerability is fixed in 25.8.0.

Vendors: librenms
Products: librenms
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (12.5%)

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