CVE-2026-110031: Unknown Salon Booking System

The Salon Booking System WordPress plugin before 10.31.11 does not prevent users holding its custom salon staff role from assigning arbitrary capabilities to other accounts when editing a customer, allowing them to escalate any account to administrator and take over the site.

Affected products

• Unknown Salon Booking System: from 10.17, before 10.31.11 (fixed in 10.31.11)

Published 2026-10-18. Last modified 2026-10-18.