MainWP Child < 3.4.5 - Authentication Bypass

Authentication Bypass Using an Alternate Path or Channel
CVSS 8.3 (High)
Publicly Published February 18, 2018
Last Updated January 22, 2024
Researcher Slavco Mihajloski


The MainWP Child plugin for WordPress is vulnerable to authentication bypass due to insufficient validation on the check_login function in versions up to, and including, 3.4.4. This makes it possible for attackers to become administrative users and take full control of the affected website.



Vulnerability Details for MainWP Child – Securely Connects to the MainWP Dashboard to Manage Multiple Sites

Software Type Plugin
Software Slug mainwp-child (view on
Patched? Yes
Remediation Update to version 3.4.5, or a newer patched version
Affected Version
  • < 3.4.5
Patched Version
  • 3.4.5

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