CVE-2020-35700Public exploitNetwork attack vector

Database disclosure via stored widget sort injection

Published Feb 8, 2021 · Updated Aug 4, 2024

Second-order SQL injection in LibreNMS before 21.1.0 allows remote authenticated users to read database contents through a dashboard widget. TopDevicesController stores sort_order in users_widgets and later inserts it into raw ORDER BY clauses without validation when the widget renders. Any authenticated role can extract database records, including password hashes and device credentials, or make the application unresponsive.

CVSS severity8.8
High
EPSS probability2.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Second-order SQL injection in LibreNMS before 21.1.0 allows remote authenticated users to read database contents through a dashboard widget. TopDevicesController stores sort_order in users_widgets and later inserts it into raw ORDER BY clauses without validation when the widget renders. Any authenticated role can extract database records, including password hashes and device credentials, or make the application unresponsive.

The record

CVE
CVE-2020-35700
Published
Feb 8, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-89, T1499.004, T1213.006
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 8, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1499.004Endpoint Denial of Service: Application or System Exploitation
T1213.006Data from Information Repositories: Databases

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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