The Salon Booking System WordPress plugin through 10.30.33 does not perform any capability check or validate an OAuth state value on its Google Calendar authorization callback, which is also hooked for unauthenticated users, allowing an unauthenticated attacker to overwrite the site's stored Google Calendar connection tokens with attacker-controlled ones and hijack the integration. Exploitation requires the site to have configured its own Google OAuth client for the calendar feature.

Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in Dimitri Grassi Salon booking system salon-booking-system allows Retrieve Embedded Sensitive Data.This issue affects Salon booking system: from n/a through <= 10.30.3.

Cross-Site Request Forgery (CSRF) vulnerability in Dimitri Grassi Salon booking system salon-booking-system allows Cross Site Request Forgery.This issue affects Salon booking system: from n/a through <= 10.30.3.