MainWP Child < 3.4.5 - Authentication Bypass

8.3
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

Description

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.

Learn more about Authentication Bypass vulnerabilities and how to prevent them.

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

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

Recent vulnerabilities in MainWP Child – Securely Connects to the MainWP Dashboard to Manage Multiple Sites

# Title CVE ID CVSS Researchers Date
1 MainWP Child – Securely Connects to the MainWP Dashboard to Manage Multiple Sites <= 6.1.1 - Missing Authorization CVE-2026-27366 5.3 Drew Webber (mcdruid) June 23, 2026
2 MainWP Child <= 5.3.3 - Missing Authorization to Unauthenticated Privilege Escalation CVE-2024-10783 8.1 Sean Murphy, wesley (wcraft) December 12, 2024
3 MainWP Child <= 4.4.1.1 - Information Disclosure via Back-Up Files CVE-2023-3132 5.9 Robert Lockwood June 23, 2023
4 MainWP Child <= 4.1.7.1 - SQL Injection via orderby, order Parameters CVE-2021-24877 7.2 ZhongFu Su October 25, 2021
5 MainWP Child <= 2.0.27 - Multiple Cross-Site Scripting 6.1 September 7, 2015
6 MainWP Dashboard and MainWP Child <= 2.0.22 - Unspecified Vulnerability 7.3 Francois Harvey August 7, 2015
7 MainWP Child – Securely connects sites to the MainWP WordPress Manager Dashboard < 2.0.9.2 - Authentication Bypass 9.8 MICKAEL NADEAU (Sucuri) March 9, 2015

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