CVE-2020-35700

SQL Injection in librenms

8.8 HighFix available

A second-order SQL injection issue in Widgets/TopDevicesController.php (aka the Top Devices dashboard widget) of LibreNMS before 21.1.0 allows remote authenticated attackers to execute arbitrary SQL commands via the sort_order parameter against the /ajax/form/widget-settings endpoint.

Attack profile

How easy it is to exploit

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

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

2.37%Up 0.8 points since Apr 14, 2021

What each source reports

NVD Score used8.8

Record: CVE-2020-35700
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 6.5 MediumAV:N/AC:L/Au:S/C:P/I:P/A:P
Weakness: CWE-89
Updated: 2026-11-02

CVE ListNo score

Record: CVE-2020-35700
Updated: 2026-11-02

EUVDEUVD-2021-1095No score

Record: EUVD-2021-1095
Updated: 2026-11-03

GitHub AdvisoriesGHSA-h59f-p56g-g75v8.8

SQL Injection in librenms

Record: GHSA-h59f-p56g-g75v
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-89
Updated: 2026-11-02

OSV8.8

Record: CVE-2020-35700
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVGHSA-h59f-p56g-g75v8.8

SQL Injection in librenms

Record: GHSA-h59f-p56g-g75v
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-89
Updated: 2026-11-02

Affected products

librenms

Affected packages

Affected packages
Package	Affected	Fixed
`librenms/librenms` Packagist	before 21.1.0	21.1.0
`librenms/librenms` Packagist	before 21.1.0, 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	21.1.0

History

History
Recorded	Changed	Sources
Nov 10, 2026	facts
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-2020-35700 is a high vulnerability (CVSS 8.8) in Librenms, published February 8, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.37%, the 84th percentile. Fixed in librenms/librenms 21.1.0.

References

This page doesn't list everything

Left out here: 21 versions. The JSON record has them.