what3words Address Field <= 4.0.0 - Authenticated (Administrator+) Sensitive Information Exposure in class-w3w-autosuggest-public.php

Information Exposure
CVE CVE-2021-4428
CVSS 5.3 (Medium)
Publicly Published July 18, 2023
Last Updated July 21, 2023


The what3words Address Field plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 4.0.0 in class-w3w-autosuggest-public.php. This can allow authenticated attackers, with administrator-level privileges and above, to extract sensitive data.



1 affected software package

Software Type Plugin
Software Slug 3-word-address-validation-field (view on wordpress.org)
Patched? Yes
Remediation Update to version 4.0.1, or a newer patched version
Affected Version
  • <= 4.0.0
Patched Version
  • 4.0.1

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