How severe is CVE-2021-4428?

CVE-2021-4428 has a CVSS 3.x base score of 2.7, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-4428 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-4428?

CVE-2021-4428 affects What3words Autosuggest. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-4428?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-4428 published?

CVE-2021-4428 was published on 2023-07-18 and last updated on 2026-06-17.

CVE-2021-4428

CVE-2021-4428 is a low-severity vulnerability in What3words Autosuggest with a CVSS 3.x base score of 2.7. Its EPSS exploit-prediction score of 16% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-200.

Key facts

Severity: Low (CVSS 3.x base score 2.7)
CVSS v2: 3.3
EPSS exploit prediction: 16% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: What3words Autosuggest
Published: 2023-07-18
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-4428?: 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.
How severe is CVE-2021-4428?: CVE-2021-4428 has a CVSS 3.x base score of 2.7, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-4428 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-4428?: CVE-2021-4428 affects What3words Autosuggest. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-4428?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-4428 published?: CVE-2021-4428 was published on 2023-07-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:what3words:autosuggest:*:*:*:*:*:wordpress:*:*

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