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Release: Australia · Updated: 2026-03-12 · Official documentation · View source

Require CAPTCHA for guest walk-up experience in customer service application

The CAPTCHA for the Guest Walk-up experience prevents unauthenticated guest users to create bookings by requiring users to complete a CAPTCHA verification.

The CAPTCHA for the Guest Walk-up experience prevents unauthenticated guest users to create bookings by requiring users to complete a CAPTCHA verification. If CAPTCHA isn't enabled, this could lead to automated creation of spam appointments to overwhelm the system or fill up all available booking spots creating a Denial of Service attack.

If Guest Walk-up Experience for Customer Service application is active, ensure that sn_guest_walkup_cs.captcha.enabled is set to true.

More information

AttributeDescription
Configuration namesn_guest_walkup_cs.captcha.enabled
Configuration typeSystem Properties \(/sys\_properties\_list.do\)
Data typeBoolean
Recommended valuetrue
Default value<none>
Fallback valuetrue
CategoryAuthentication
Security risk- Severity score: 3.7 - CVSS score: Low - Security risk details: This exposes the system to spam appointments and resource exhaustion attacks, potentially filling all available booking slots and causing a Denial of Service \(DoS\). Without CAPTCHA, the platform lacks a critical control to prevent automated abuse and maintain service availability.
Dependencies and prerequisitesNone
Functional impactThis property enables or disables the captcha on the CSM Guest Walkup Check-in widgets. By default, it is set to true.

Parent Topic:Authentication