---
id: CVE-2026-66666
title: >-
  Insertion of Sensitive Information Into Sent Data vulnerability in Automattic
  WordPress allows Retrieve Embedded Sensitive Data.


  This issue affects WordPress: from 7.1 through 7.1.2, from 7.0 through 7.0.6,
  from 6.9 through 6.9.9, from …
summary: >-
  Insertion of Sensitive Information Into Sent Data vulnerability in Automattic
  WordPress allows Retrieve Embedded Sensitive Data.


  This issue affects WordPress: from 7.1 through 7.1.2, from 7.0 through 7.0.6,
  from 6.9 through 6.9.9, from …
severity: medium
cvss: 6.9
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-201
vendor: Automattic
product: WordPress
affected:
  - WordPress >= 7.1 <= 7.1.2
  - WordPress >= 7.0 <= 7.0.6
  - WordPress >= 6.9 <= 6.9.9
  - WordPress >= 6.8 <= 6.8.10
  - WordPress >= 6.7 <= 6.7.9
  - WordPress >= 6.6 <= 6.6.9
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T21:17:20.977'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-66666'
references:
  - url: 'https://patchstack.com/articles/wordpress-7-1-3-security-release?_s_id=cve'
    label: audit@patchstack.com
  - url: >-
      https://patchstack.com/database/wordpress/wordpress/wordpress/vulnerability/wordpress-wordpress-wordpress-7-1-2-sensitive-data-exposure-vulnerability?_s_id=cve
    label: audit@patchstack.com
  - url: >-
      https://wordpress.org/news/2026/10/wordpress-7-1-3-maintenance-and-security-release/
    label: audit@patchstack.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-06T18:21:14.868038Z'
cvssSource: cna
ingestedAt: '2026-10-06T18:11:36.224Z'
---

## Overview

Insertion of Sensitive Information Into Sent Data vulnerability in Automattic WordPress allows Retrieve Embedded Sensitive Data.

This issue affects WordPress: from 7.1 through 7.1.2, from 7.0 through 7.0.6, from 6.9 through 6.9.9, from 6.8 through 6.8.10, from 6.7 through 6.7.9, and from 6.6 through 6.6.9.

## Remediation

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