CVE-2023-1430

MEDIUM

FluentCRM - Marketing Automation For WordPress <2.7.40 - Info Discl...

Title source: llm

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-1430. PoCs published by karlemilnikka.

AI-analyzed exploit summary This repository provides a detailed writeup and mitigation for CVE-2023-1430, an insufficient use of hash as authorization control in FluentCRM. The vulnerability allows attackers to view and edit contact details by exploiting MD5 hashes of email addresses.

Description

The FluentCRM - Marketing Automation For WordPress plugin for WordPress is vulnerable to unauthorized modification of data in versions up to, and including, 2.8.01 due to the use of an MD5 hash without a salt to control subscriptions. This makes it possible for unauthenticated attackers to unsubscribe users from lists and manage subscriptions, granted they gain access to any targeted subscribers email address.

Exploits (1)

nomisec WRITEUP

by karlemilnikka · poc

https://github.com/karlemilnikka/CVE-2023-1430

View Code ZIP pw:eip

This repository provides a detailed writeup and mitigation for CVE-2023-1430, an insufficient use of hash as authorization control in FluentCRM. The vulnerability allows attackers to view and edit contact details by exploiting MD5 hashes of email addresses.

Classification

Writeup 100%

Attack Type

Auth Bypass

Complexity

Moderate

Reliability

Reliable

Target: FluentCRM (versions up to 2.7.40)

No auth needed

Prerequisites: knowledge of the contact's email address · access to FluentCRM's unsubscribe or preference management pages

MITRE ATT&CK

T1189 - Drive-by Compromise

devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4

Core References

Patch

https://plugins.trac.wordpress.org/changeset/2899218/fluent-crm/tags/2.8.0/app/Hooks/Handlers/ExternalPages.php?old=2873074&old_path=fluent-crm%2Ftags%2F2.7.40%2Fapp%2FHooks%2FHandlers%2FExternalPages.php

Third Party Advisory

https://www.wordfence.com/threat-intel/vulnerabilities/id/de6da87e-8f7d-4120-8a1b-390ef7733d84?source=cve

https://github.com/karlemilnikka/CVE-2023-1430

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2924787%40fluent-crm&new=2924787%40fluent-crm&sfp_email=&sfph_mail=

Scores

CVSS v3 6.5

EPSS 0.0080

EPSS Percentile 51.8%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-759

Status published

Products (2)

techjewel/FluentCRM – Email Newsletter, Automation, Email Marketing, Email Campaigns, Optins, Leads, and CRM Solution < 2.8.0.1

wpmanageninja/fluentcrm < 2.7.40

Published Jun 09, 2023

Tracked Since Feb 18, 2026