MainWP Child vulnerabilities

Deserialization of Untrusted Data vulnerability in MainWP MainWP Child mainwp-child allows Object Injection. This issue affects MainWP Child: from n/a through 6.2.1.

The MainWP Child WordPress plugin before 6.1.2 does not verify the requester's identity in its site-registration request handler when password authentication has been disabled for the targeted account, allowing an unauthenticated attacker to obtain a valid authentication session as that account, including an administrator, by naming its login in a single registration request.

The MainWP Child plugin versions up to 6.1.1 contain a vulnerability allowing unauthenticated attackers to bypass access controls. This flaw enables unauthorized operations on the site without requiring authentication.