CVE-2018-18478

LibreNMS XSS Vulnerability

6.1 MediumFix available

Persistent Cross-Site Scripting (XSS) issues in LibreNMS before 1.44 allow remote attackers to inject arbitrary web script or HTML via the dashboard_name parameter in the /ajax_form.php resource, related to html/includes/forms/add-dashboard.inc.php, html/includes/forms/delete-dashboard.inc.php, and html/includes/forms/edit-dashboard.inc.php.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

1.60%Up 0.2 points since Apr 14, 2021

What each source reports

NVD Score used 6.1

Record: CVE-2018-18478
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE List No score

Record: CVE-2018-18478
Updated: 2026-11-02

EUVDEUVD-2022-3412 No score

Record: EUVD-2022-3412
Updated: 2026-11-03

GitHub AdvisoriesGHSA-9m82-f3wx-p625 6.1

LibreNMS XSS Vulnerability

Record: GHSA-9m82-f3wx-p625
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

OSV 6.1

Record: CVE-2018-18478
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

OSVGHSA-9m82-f3wx-p625 6.1

LibreNMS XSS Vulnerability

Record: GHSA-9m82-f3wx-p625
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

Affected products

librenms

Affected packages

Affected packages
Package	Affected	Fixed
`librenms/librenms` Packagist	before 1.44	1.44
`librenms/librenms` Packagist	before 1.44, plus listed versions 1.191.201.20.11.211.22 Show 30 moreShow less 1.22.011.231.241.251.261.271.281.291.301.30.011.311.31.011.31.021.31.031.321.32.011.331.33.011.341.351.361.36.011.371.381.391.401.411.421.42.011.43	1.44

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-18478 is a medium vulnerability (CVSS 6.1) in Librenms, published October 18, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.60%, the 75th percentile. Fixed in librenms/librenms 1.44.