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Vulnerabilities

Vulnerability · CVE-2021-4374

ValvePress wordpress_automatic_plugin Missing Authorization

Published Sep 6, 2021 · catalog updated Sep 6, 2021 · ValvePress

Patch now

CVE-2021-4374 is in the CISA known-exploited catalog. Confirm ValvePress against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
16.41%
Remediation
Remediation guidance
Affected products
stated wordpress_automatic_plugin · vendor 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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • stated wordpress_automatic_plugin<= 3.53.2
  • vendor ValvePress wordpress_automatic_pluginversion unspecified

How to fix CVE-2021-4374

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2021-4374 is in the CISA known-exploited catalog. Confirm ValvePress against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with <= 3.53.2. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 16.41%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 6, 2021 · VulnCheck KEV

    Detected

    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.

  2. Sep 6, 2021 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2021-4374

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2021-4374

    30-day exploitation probability 16.4%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2021-4374

    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 arbit

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.