CVE-2020-35700

Name: CVE-2020-35700
Creator: NVD / NIST
Published: 2021-02-08T09:15:12.463+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 2.34%

Last modified Jun 17, 2026

CVE-2020-35700 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 2.34% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.34%

81.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Librenms	Librenms	< 21.1.0

References

https://github.com/librenms/librenms/blob/master/app/Http/Controllers/Widgets/TopDevicesController.phpThird Party Advisory
https://github.com/librenms/librenms/issues/12405Third Party Advisory
https://github.com/librenms/librenms/pull/12422Patch, Third Party Advisory
https://github.com/librenms/librenms/releases/tag/21.1.0Release Notes, Third Party Advisory
https://www.horizon3.ai/disclosures/librenms-second-order-sqliExploit, Third Party Advisory
https://github.com/librenms/librenms/blob/master/app/Http/Controllers/Widgets/TopDevicesController.phpThird Party Advisory
https://github.com/librenms/librenms/issues/12405Third Party Advisory
https://github.com/librenms/librenms/pull/12422Patch, Third Party Advisory
https://github.com/librenms/librenms/releases/tag/21.1.0Release Notes, Third Party Advisory
https://www.horizon3.ai/disclosures/librenms-second-order-sqliExploit, Third Party Advisory

Timeline

Published: Feb 8, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-35700?

How severe is CVE-2020-35700?

CVE-2020-35700 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.34% probability of exploitation in the next 30 days.

How do I fix CVE-2020-35700?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-35700?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST