Enable CAPTCHA for External User Registration

  • Release version: Australia
  • Updated March 12, 2026
  • 1 minute to read

    • The sn_ext_usr_reg.captchaEnabled controls if CAPTCHA will be validated for external user registration.

    If the sn_ext_usr_reg.captchaEnabled system property is not set to the recommended value of true, then CAPTCHA isn't validated for external user registration and could lead to automatic account creation attacks.

    Ensure that the property sn_ext_usr_reg.captchaEnabled is set to true.

    More information

    Attribute Description
    Configuration name sn_ext_usr_reg.captchaEnabled
    Configuration type System Properties (/sys_properties_list.do)
    Data type Boolean
    Recommended value true
    Default value <none>
    Fallback value true
    Category Authentication
    Security risk
    • Severity score: 3.7
    • CVSS rating: Low
    • Security risk details: Enforcing CAPTCHA is critical to prevent bot-driven attacks and maintain the integrity of user onboarding.
    Functional impact None
    Dependencies and prerequisites None

    To learn more about adding or creating a system property, see Add a system property.