CVE-2021-39165Network attack vector

Database read and write via unrestricted search columns

Published Aug 26, 2021 · Updated Aug 4, 2024

SQL injection in Cachet 2.3.18 and earlier allows remote attackers to read or modify database data through unauthenticated searches. SearchableTrait::scopeSearch() verifies that at least one supplied key is searchable but passes the entire attacker-controlled array to the query builder, allowing unapproved keys to become SQL column expressions. No authentication is required; successful requests can expose administrator passwords and sessions or alter database records.

CVSS severity8.1
High
EPSS probability9.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Cachet 2.3.18 and earlier allows remote attackers to read or modify database data through unauthenticated searches. SearchableTrait::scopeSearch() verifies that at least one supplied key is searchable but passes the entire attacker-controlled array to the query builder, allowing unapproved keys to become SQL column expressions. No authentication is required; successful requests can expose administrator passwords and sessions or alter database records.

The record

CVE
CVE-2021-39165
Published
Aug 26, 2021
Updated
Aug 4, 2024
Vendor
CachetHQ
Product
Cachet
Classifications
CWE-287, CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 26, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 2.3.18

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CachetHQ · Cachetversion=<= 2.3.18

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
8.1GitHub CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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