---
id: CVE-2026-39791
title: >-
  Unauthenticated Sensitive Data Exposure in Mailjet Email Marketing <= 6.2.3
  versions.
summary: >-
  Unauthenticated Sensitive Data Exposure in Mailjet Email Marketing <= 6.2.3
  versions.
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-201
vendor: Mailjet
product: mailjet-for-wordpress
affected:
  - mailjet-for-wordpress >= n/a <= 6.2.3
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T11:17:26.113'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-39791'
references:
  - url: >-
      https://patchstack.com/database/wordpress/plugin/mailjet-for-wordpress/vulnerability/wordpress-mailjet-email-marketing-plugin-6-2-3-sensitive-data-exposure-vulnerability?_s_id=cve
    label: audit@patchstack.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-06T10:11:59.879583Z'
ingestedAt: '2026-10-06T08:50:17.478Z'
---

## Overview

Unauthenticated Sensitive Data Exposure in Mailjet Email Marketing <= 6.2.3 versions.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.