What’s Vulnerable › Vulnerabilities

CVE-2024-50351: LibreNMS has a Reflected XSS ('Cross-site Scripting') in librenms/includes/functions.php

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-11-15 · updated 2026-06-17
• Weakness: CWE-79

Description

LibreNMS is an open-source, PHP/MySQL/SNMP-based network monitoring system. A Reflected Cross-Site Scripting (XSS) vulnerability in the "section" parameter of the "logs" tab of a device allows attackers to inject arbitrary JavaScript. This vulnerability results in the execution of malicious code when a user accesses the page with a malicious "section" parameter, potentially compromising their session and enabling unauthorized actions. The issue arises from a lack of sanitization in the "report_this()" function. This vulnerability is fixed in 24.10.0.

Affected products

• librenms: before 24.10.0 — fixed in 24.10.0

How to fix

Upgrade to a fixed version: librenms 24.10.0. Check the vendor advisory for mitigations.

References

• https://github.com/librenms/librenms/commit/6a14a9bd767c6e452e4df77a24126c3eeb93dcbf
• https://github.com/librenms/librenms/security/advisories/GHSA-v7w9-63xh-6r3w

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