Salon Booking System – Free Version <= 10.30.33 - Missing Authorization

5.3
Missing Authorization
CVE CVE-2026-17021
CVSS 5.3 (Medium)
Publicly Published August 6, 2026
Last Updated August 15, 2026
Researcher Muni Nitish Kumar Yaddala

Description

The Salon Booking System – Free Version plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 10.30.33. This makes it possible for unauthenticated attackers to perform an unauthorized action.

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Vulnerability Details for Salon Booking System – Appointment Booking for Salons, Barbershops & Spas

Software Type Plugin
Software Slug salon-booking-system (view on wordpress.org)
Patched? Yes
Remediation Update to version 10.30.34, or a newer patched version
Affected Version
  • <= 10.30.33
Patched Version
  • 10.30.34

Recent vulnerabilities in Salon Booking System – Appointment Booking for Salons, Barbershops & Spas

# Title CVE ID CVSS Researchers Date
1 Salon Booking System <= 10.30.19 - Missing Authorization to Authenticated (Subscriber+) Booking Approval Bypass CVE-2026-11887 4.3 Kevin August 10, 2026
2 Salon Booking System – Appointment Booking for Salons, Barbershops & Spas <= 10.30.26 - Missing Authorization CVE-2026-66453 5.3 Evan NR August 7, 2026
3 Salon Booking System – Free Version <= 10.30.33 - Missing Authorization to Unauthenticated Google Calendar Connection Hijack CVE-2026-17023 5.3 Daniel Dhaniswara August 6, 2026
4 Salon Booking System – Free Version <= 10.30.33 - Unauthenticated Booking Information Disclosure CVE-2026-17022 5.3 Usama Arshad August 6, 2026
5 Salon Booking System – Free Version <= 10.31.0 - Insecure Direct Object Reference to Authenticated (Subscriber+) Arbitrary Booking PII Disclosure CVE-2026-17020 4.3 Muni Nitish Kumar Yaddala August 6, 2026
6 Salon Booking System <= 10.30.32 - Cross-Site Request Forgery to Remote Code Execution via 'value' Parameter CVE-2026-15070 8.8 Afifudin Maarif July 9, 2026
7 Salon Booking System – Free Version <= 10.30.25 - Missing Authorization CVE-2026-42666 5.3 Evan NR May 10, 2026
8 Salon Booking System – Free Version <= 10.30.25 - Unauthenticated Arbitrary File Read via Booking File Field Path Traversal CVE-2026-6320 7.5 daroo May 1, 2026
9 Salon Booking System – Free Version <= 10.30.24 - Unauthenticated Insecure Direct Object Reference CVE-2026-40768 5.3 Lubin Regnault April 21, 2026
10 Salon booking system <= 10.30.3 - Authenticated (Subscriber+) Information Exposure CVE-2025-67954 3.1 daroo January 21, 2026

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