The User Registration & Membership WordPress plugin before 4.1.3 does not properly validate data in an AJAX action when the Membership Addon is enabled, allowing attackers to authenticate as any user, including administrators, by simply using the target accounts user ID.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| User_registration_&_membership | Wpeverest | * | 4.1.3 (excluding) |
| User_registration_&_membership | Wpeverest | * | 5.1.3 (excluding) |