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CVE-2021-4374

58
FAUCET Score

CVE-2021-4374 is a critical vulnerability affecting the WordPress Automatic Plugin (versions up to 3.53.2) that allows unauthenticated attackers to arbitrarily update site settings due to missing authorization and validation. This flaw carries a CVSS score of 9.8 (CRITICAL) due to its network-based attack vector, low complexity, and potential for complete compromise (confidentiality, integrity, and availability). While not listed on the KEV catalog, exploit modules are publicly available in Metasploit and Nuclei, indicating a high likelihood of exploitation, despite minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.53.2CPE matchmatch criteria
cpe:2.3:a:valvepress:wordpress_automatic_plugin:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
16.41%
Probability of exploitation in next 30 days
EPSS Percentile
96.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Metasploit: WordPress Plugin Automatic Config Change to RCE · Sep 6, 2021
Nuclei: CVE-2021-4374 · Nov 6, 2025
This CVE's current EPSS score of 0.1641 is in the 93rd percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blog.nintechnet.com / critical-vulnerability-fixed-in-wordpress-automatic-plugin
Exploit
wordfence.com / threat-intel/vulnerabilities/id/d0567dc8-7a4c-42f4-bf45-f31a8efaa354
Third Party Advisory