Defender Security <= 4.2.0 - Masked Login Area Security Feature Bypass

Protection Mechanism Failure
CVE CVE-2023-47189
CVSS 5.3 (Medium)
Publicly Published November 3, 2023
Last Updated November 13, 2023
Researcher Naveen Muthusamy


The Defender Security ā€“ Malware Scanner, Login Security & Firewall plugin for WordPress is vulnerable to security feature bypass in all versions up to, and including, 4.2.0. This is due to an unspecified issue. This makes it possible for unauthenticated attackers to bypass the login masking security feature.



1 affected software package

Software Type Plugin
Software Slug defender-security (view on
Patched? Yes
Remediation Update to version 4.2.1, or a newer patched version
Affected Version
  • <= 4.2.0
Patched Version
  • 4.2.1

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