CVE-2026-110035: Unknown Salon Booking System

The Salon Booking System WordPress plugin before 10.31.11 does not restrict one of its REST API endpoints to salon staff, allowing any authenticated user, such as a subscriber, to retrieve every discount coupon configured on the site, including coupons the administrator has chosen to hide from customers, together with their amounts, validity dates and usage limits.

Affected products

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

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