TrueBooker <= 1.1.6 - Missing Authorization

5.3
Missing Authorization
CVE CVE-2026-39663
CVSS 5.3 (Medium)
Publicly Published February 18, 2026
Last Updated April 24, 2026
Researcher Nabil Irawan - Heroes Cyber Security

Description

The TrueBooker plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 1.1.6. This makes it possible for unauthenticated attackers to perform an unauthorized action.

References

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Vulnerability Details for TrueBooker – Appointment Booking and Scheduler System

Software Type Plugin
Software Slug truebooker-appointment-booking (view on wordpress.org)
Patched? Yes
Remediation Update to version 1.1.7, or a newer patched version
Affected Version
  • <= 1.1.6
Patched Version
  • 1.1.7

Recent vulnerabilities in TrueBooker – Appointment Booking and Scheduler System

# Title CVE ID CVSS Researchers Date
1 TrueBooker <= 1.2.6 - Unauthenticated Authorization Bypass Through User-Controlled Key to Account Takeover to 'truebooker_wp_user_id' Parameter CVE-2026-18315 9.8 Décio Brandão August 18, 2026
2 TrueBooker <= 1.2.6 - Unauthenticated Account Takeover via Insecure Direct Object Reference in 'truebooker_wp_user_id' Parameter CVE-2026-16142 9.8 Nabil Irawan August 14, 2026
3 TrueBooker <= 1.2.3 - Missing Authorization to Unauthenticated Arbitrary Password Reset via 'tbab-userid' CVE-2026-14364 9.8 thevietronin August 6, 2026
4 TrueBooker <= 1.2.3 - Missing Authorization to Unauthenticated Arbitrary Password Reset via 'truebooker_wp_user_id' CVE-2026-14365 9.8 Nhien Pham (nhienit) (nhienit) August 6, 2026
5 TrueBooker <= 1.2.2 - Unauthenticated SQL Injection CVE-2026-13161 7.5 Karan J July 27, 2026
6 TrueBooker – Appointment Booking and Scheduler System <= 1.2.3 - Unauthenticated Privilege Escalation CVE-2026-61951 9.8 yangsori July 17, 2026
7 TrueBooker – Appointment Booking and Scheduler System <= 1.2.3 - Unauthenticated SQL Injection CVE-2026-61950 7.5 Nguyen Dinh Hai (HaiND) July 16, 2026
8 TrueBooker – Appointment Booking and Scheduler System <= 1.1.9 - Missing Authorization CVE-2026-48881 5.3 Vincent Sevkli June 2, 2026
9 Truebooker - Appointment Booking and Scheduler Plugin <= 1.1.4 - Sensitive Information Exposure via Views Files CVE-2026-1797 5.3 Kazuma Matsumoto March 30, 2026
10 TrueBooker <= 1.1.0 - Missing Authorization CVE-2025-67581 5.3 daroo December 15, 2025

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