CVE-2023-47189 MEDIUM

CVE-2023-47189: WordPress Defender Security plugin <= 4.2.0 - Masked Login Area View Bypass vulnerability

Vendor Wpmu Dev

Product Defender Security

Weakness CWE-287 · Improper authentication

Published June 4, 2024

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

5.3/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction None

Confidentiality Low

Integrity None

CVSS vector

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

What the vulnerability does

01Description

Improper Authentication vulnerability in WPMU DEV Defender Security allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects Defender Security: from n/a through 4.2.0.

Explanation of Vulnerability in Simple Terms

02Summary

Defender Security for WordPress contains an authentication flaw that allows unauthenticated attackers to read sensitive information from the site. The vulnerability affects versions up to 4.2.0 and requires no user interaction. Site administrators should update to a version newer than 4.2.0 to resolve this issue.

What an attacker can do

03Attacker Capabilities

Read sensitive information from the site without logging in.

Potential impact on your site

04Site Impact

Attackers can access confidential data exposed by the plugin without needing valid credentials.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

June 4, 2024 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-47189 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/287.html AskarLabs — CWE-287 write-up Improper Authentication

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