CVE-2021-39165

HIGH NUCLEI

Cachet <= 2.3.18 - Unauthenticated SQL Injection via SearchableTrait

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2021-39165. PoCs published by W0rty, manbolq. A Nuclei detection template is also available.

AI-analyzed exploit summary This repository contains a functional Python exploit for CVE-2021-39165, a SQL injection vulnerability in Cachet versions prior to 2.3.18 and 2.4.0-dev. The exploit automates the extraction of user passwords via time-based SQL injection.

Description

Cachet is an open source status page. With Cachet prior to and including 2.3.18, there is a SQL injection which is in the `SearchableTrait#scopeSearch()`. Attackers without authentication can utilize this vulnerability to exfiltrate sensitive data from the database such as administrator's password and session. The original repository of Cachet <https://github.com/CachetHQ/Cachet> is not active, the stable version 2.3.18 and it's developing 2.4 branch is affected.

Exploits (2)

nomisec WORKING POC 22 stars
by W0rty · poc
https://github.com/W0rty/CVE-2021-39165

This repository contains a functional Python exploit for CVE-2021-39165, a SQL injection vulnerability in Cachet versions prior to 2.3.18 and 2.4.0-dev. The exploit automates the extraction of user passwords via time-based SQL injection.

Classification
Working Poc 100%
Attack Type
Sqli
Complexity
Moderate
Reliability
Reliable
Target: Cachet prior to 2.3.18 and 2.4.0-dev
No auth needed
Prerequisites: Target URL · Valid user account (default: admin)
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC
by manbolq · poc
https://github.com/manbolq/CVE-2021-39165

This repository contains a functional Python exploit for CVE-2021-39165, a time-based SQL injection vulnerability in CachetHQ. The exploit includes both vulnerability checking and arbitrary SQL query execution capabilities.

Classification
Working Poc 100%
Attack Type
Sqli
Complexity
Moderate
Reliability
Reliable
Target: CachetHQ
No auth needed
Prerequisites: Target URL · Network access to the vulnerable CachetHQ instance
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Nuclei Templates (1)

Cachet <=2.3.18 - SQL Injection
MEDIUMVERIFIEDby tess
Shodan: http.favicon.hash:-1606065523
FOFA: icon_hash=-1606065523

References (2)

Core 2

Scores

CVSS v3 8.1
EPSS 0.8041
EPSS Percentile 99.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Details

CWE
CWE-287 CWE-89
Status published
Products (2)
cachethq/cachet 0Packagist
chachethq/cachet < 2.3.18
Published Aug 26, 2021
Tracked Since Feb 18, 2026