What the vulnerability does
01Description
The Wishlist Member plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'WishListMember\Features\Team_Accounts::save_settings' function in all versions up to, and including, 3.30.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update arbitrary plugin options, includes the REST API Secret Key, which can be used to create a new membership level assigned the administrator WordPress role, and register an arbitrary administrator-level user account, resulting in complete site takeover.
Explanation of Vulnerability in Simple Terms
02Summary
Wishlist Member versions up to 3.30.1 contain a privilege management flaw that allows authenticated users with low-level access to gain unauthorized administrative capabilities. An attacker with a standard user account can escalate their privileges to perform actions restricted to administrators, including modifying site settings and accessing sensitive data. Sites running affected versions should update immediately.
What an attacker can do
03Attacker Capabilities
Escalate from a low-privilege user account to administrator-level access and modify site settings or data.
Potential impact on your site
04Site Impact
Compromised user accounts can gain full administrative control, risking data theft, site defacement, and malware injection.
Conditions required to exploit
05Prerequisites
Attacker must have a valid low-privilege user account on the site; no user interaction required.
Key dates
06Disclosure timeline
May 23, 2026
CVE published
May 26, 2026
Record updated
