CVE-2025-26593: Fasterthemes Fastbook

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

Cross-Site Request Forgery (CSRF) vulnerability in FasterThemes FastBook fastbook-responsive-appointment-booking-and-scheduling-system allows Cross Site Request Forgery.This issue affects FastBook: from n/a through <= 1.1.

Affected products

• Fasterthemes Fastbook: up to and including 1.1

Published 2025-06-06. Last modified 2026-06-17.