Vulnerability Highlight: WordPress Error-Based Information & Exposure
By default, the WordPress administrative login page displays a helpful error message whenever an account user types in the wrong username/email address or password. Unfortunately, these same helpful error messages can also be abused to assist a threat actor to validate account usernames/email addresses and/or passwords. An incorrect username/password guess combination generates the following error message: “The username ‘name-entered’ is not registered on this site”.