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Vulnerability record · CVE-2021-4374 · published 7 June 2023

CVE-2021-4374: Valvepress wordpress automatic plugin missing authorization vulnerability

Valvepress · Wordpress Automatic Plugin

The WordPress Automatic Plugin for WordPress is vulnerable to arbitrary options updates in versions up to, and including, 3.53.2. This is due to missing authorization and option validation in the process_form.php file. This makes it possible for unauthenticated attackers to arbitrarily update the settings of a vulnerable site and ultimately compromise the entire site.

9.8 CVSS 3.1 Critical EPSS 16% · top 3.1% CWE-862 · Missing authorization
9.8CVSS 3.1 base score
16%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

The WordPress Automatic Plugin for WordPress is vulnerable to arbitrary options updates in versions up to, and including, 3.53.2. This is due to missing authorization and option validation in the process_form.php file. This makes it possible for unauthenticated attackers to arbitrarily update the settings of a vulnerable site and ultimately compromise the entire site.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://blog.nintechnet.com/critical-vulnerability-fixed-in-wordpress-automatic-plugin/ Exploit
https://www.wordfence.com/threat-intel/vulnerabilities/id/d0567dc8-7a4c-42f4-bf45-f31a8efaa354?source=cve Third Party Advisory
https://blog.nintechnet.com/critical-vulnerability-fixed-in-wordpress-automatic-plugin/ Exploit
https://www.wordfence.com/threat-intel/vulnerabilities/id/d0567dc8-7a4c-42f4-bf45-f31a8efaa354?source=cve Third Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-4374), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.