CyberRota Analysis
AI-GeneratedThe Simple Membership plugin for WordPress is vulnerable to an Authentication Bypass that allows unauthenticated attackers to take over Administrator accounts on child sites within a Multisite network. This occurs due to inadequate identity verification during the public registration process, enabling attackers to register accounts using victim credentials and subsequently change their passwords. WordPress site administrators, especially those using versions up to 4.8.0 and operating in a Multisite environment, should prioritize applying the patch available in version 4.8.1 to mitigate this risk.
Original NVD Description
The Simple Membership plugin for WordPress is vulnerable to Authentication Bypass leading to Administrator Account Takeover in versions up to, and including, 4.8.0. This is due to improper identity verification during the public registration flow in WordPress Multisite environments, where the plugin binds new Simple Membership records to existing global WordPress users based solely on matching username and email, without requiring password verification or ownership proof, and fails to properly detect Administrator roles on child sites. This makes it possible for unauthenticated attackers to take over Administrator accounts on child sites in a Multisite network by registering a Simple Membership account with a victim's credentials on a site where public registration is enabled, then updating the victim's global WordPress password through the profile edit functionality. The vulnerability was partially patched in version 4.8.1.