CVE•Published 2023-06-07•Modified 2026-04-08•1 article on news•5 live references•NVD data

CVE-2021-4374Valvepress · Wordpress_automatic_plugin

Vulnerability data via NVD (ingested)

CVSS v3.1

9.1

CRITICAL

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

EPSS percentile

Exploit Prediction Scoring System · top 1% of all CVEs

Weaknesses (CWE)

CWE-862Missing Authorization

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.

Timeline

Published 2023-06-07

Modified 2026-04-08

External references

NVD MITRE Exploit-DB trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2021-4374

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · WP plugin path

http.html:"/wp-content/plugins/wordpress-automatic-plugin/"

Matches any site loading the "wordpress-automatic-plugin" plugin — doesn't rely on Shodan's vuln tag.

Shodan · product

product:"Valvepress Wordpress Automatic Plugin"

All exposed Valvepress Wordpress Automatic Plugin instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Wordpress Automatic Plugin"

HTTP body or banner mentions "Wordpress Automatic Plugin" — catches deploys Shodan didn't identify as a product.