Flask-Secutiry default provides URL

• /login (endpoint: security.login, view: security/login_user.html)
• /logout (endpoint: security.logout)
• /register (endpoint: security.register, view: security/register_user.html)
• /reset (endpoint: security.forgot_password, view: security/forgot_password.html)
• /change (endpoint: security.change_password, view: security/change_password.html)
• /confirm (endpoint: security.send_confirmation, view: security/send_confirmation.html

References :
Configuration — Flask-Security 1.7.4 documentation