CVE-2021-4428

Name: CVE-2021-4428
Creator: NVD / NIST
Published: 2023-07-18T17:15:11.14+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 15.81%

Last modified Jun 17, 2026

CVE-2021-4428 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability has been found in what3words Autosuggest Plugin up to 4.0.0 on WordPress and classified as problematic. Affected by this vulnerability is the function enqueue_scripts of the file w3w-autosuggest/public/class-w3w-autosuggest-public.php of the component Setting Handler. EPSS estimates a 15.81% chance of exploitation in the next 30 days.

Description

A vulnerability has been found in what3words Autosuggest Plugin up to 4.0.0 on WordPress and classified as problematic. Affected by this vulnerability is the function enqueue_scripts of the file w3w-autosuggest/public/class-w3w-autosuggest-public.php of the component Setting Handler. The manipulation leads to information disclosure. The attack can be launched remotely. Upgrading to version 4.0.1 is able to address this issue. The patch is named dd59cbac5f86057d6a73b87007c08b8bfa0c32ac. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-234247.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

15.81%

96.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
What3words	Autosuggest	< 4.0.1

References

https://github.com/what3words/wordpress-autosuggest-plugin/commit/dd59cbac5f86057d6a73b87007c08b8bfa0c32acPatch
https://github.com/what3words/wordpress-autosuggest-plugin/pull/20Patch, Vendor Advisory
https://github.com/what3words/wordpress-autosuggest-plugin/releases/tag/v4.0.1Release Notes
https://vuldb.com/?ctiid.234247Permissions Required
https://vuldb.com/?id.234247Permissions Required
https://github.com/what3words/wordpress-autosuggest-plugin/commit/dd59cbac5f86057d6a73b87007c08b8bfa0c32acPatch
https://github.com/what3words/wordpress-autosuggest-plugin/pull/20Patch, Vendor Advisory
https://github.com/what3words/wordpress-autosuggest-plugin/releases/tag/v4.0.1Release Notes
https://vuldb.com/?ctiid.234247Permissions Required
https://vuldb.com/?id.234247Permissions Required

Timeline

Published: Jul 18, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-4428?

How severe is CVE-2021-4428?

CVE-2021-4428 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 15.81% probability of exploitation in the next 30 days.

How do I fix CVE-2021-4428?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-4428?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST