CVE-2023-4978

Cross-site Scripting (XSS) - DOM in librenms/librenms

9.0 CriticalFix available

Cross-site Scripting (XSS) - DOM in GitHub repository librenms/librenms prior to 23.9.0.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.67%Up 0.6 points since Sep 15, 2023

What each source reports

CVE List Score used 9.0

Cross-site Scripting (XSS) - DOM in librenms/librenms

Cross-site Scripting (XSS) - DOM in GitHub repository librenms/librenms prior to 23.9.0.

Record: CVE-2023-4978
CVSS 3.0: 9.0 CriticalCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Weakness: CWE-79
Updated: 2026-11-02

EUVDEUVD-2023-2576 9.0

Cross-site Scripting (XSS) - DOM in GitHub repository librenms/librenms prior to 23.9.0.

Record: EUVD-2023-2576
CVSS 3.0: 9.0 CriticalCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Updated: 2026-11-03

GitHub AdvisoriesGHSA-qjpw-rg56-jh8v 6.1

LibreNMS Cross-site Scripting vulnerability

Cross-site Scripting (XSS) - DOM in GitHub repository librenms/librenms prior to 23.9.0.

Record: GHSA-qjpw-rg56-jh8v
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

NVD 6.1

Cross-site Scripting (XSS) - DOM in GitHub repository librenms/librenms prior to 23.9.0.

Record: CVE-2023-4978
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 3.0: 9.0 CriticalCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Weakness: CWE-79
Updated: 2026-11-02

OSV 9.0

Cross-site Scripting (XSS) - DOM in librenms/librenms

Cross-site Scripting (XSS) - DOM in GitHub repository librenms/librenms prior to 23.9.0.

Record: CVE-2023-4978
CVSS 3.0: 9.0 CriticalCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Weakness: CWE-79
Updated: 2026-11-02

OSVGHSA-qjpw-rg56-jh8v 6.1

LibreNMS Cross-site Scripting vulnerability

Cross-site Scripting (XSS) - DOM in GitHub repository librenms/librenms prior to 23.9.0.

Record: GHSA-qjpw-rg56-jh8v
CVSS 3.1: 6.1 MediumCVSS:3.1/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

Affected packages

Affected packages
Package	Affected	Fixed
`librenms/librenms` Packagist	before 23.9.0	23.9.0
`librenms/librenms` Packagist	before 23.9.0, plus listed versions 1.191.201.20.11.211.22 Show 45 moreShow less 1.22.011.231.241.251.261.271.281.291.301.30.011.311.31.011.31.021.31.031.321.32.011.331.33.011.341.351.361.36.011.371.381.391.401.411.421.42.011.431.441.451.461.471.481.48.11.491.501.50.11.511.521.531.53.11.541.55	23.9.0

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, published	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-2023-4978 is a critical vulnerability (CVSS 9.0) in Librenms, published September 15, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.67%, the 52nd percentile. Fixed in librenms/librenms 23.9.0.

References

This page doesn't list everything

Left out here: 64 versions. The JSON record has them.