#VU127450 Cross-site scripting in LibreNMS - CVE-2025-23201
Published: January 16, 2025 / Updated: April 24, 2026
Vulnerability identifier: #VU127450
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green
CVE-ID: CVE-2025-23201
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
LibreNMS
LibreNMS
Software vendor:
LibreNMS Project
LibreNMS Project
Description
The vulnerability allows a remote attacker to execute arbitrary script code in a user's browser.
The vulnerability exists due to cross-site scripting in the /addhost error alert when processing the community parameter. A remote attacker can submit a specially crafted value to execute arbitrary script code in a user's browser.
User interaction is required to view or interact with the page displaying the error message.
Remediation
Install security update from vendor's website.