What’s Vulnerable › Vulnerabilities

CVE-2024-50355: LibreNMS has a Persistent XSS from Insecure Input Sanitization Affects Multiple Endpoints

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% 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. User with Admin role can edit the Display Name of a device, the application did not properly sanitize the user input in the device Display Name, if java script code is inside the name of the device Display Name, its can be trigger from different sources. 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/bb4731419b592867bf974dde525e536606a52976
• https://github.com/librenms/librenms/security/advisories/GHSA-4m5r-w2rq-q54q

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