9.8
Critical
CVE-2026-18315 The TrueBooker – Appointment Booking and Scheduler System plugin for WordPress is vulnerable to Authorization Bypass…
Description
The TrueBooker – Appointment Booking and Scheduler System plugin for WordPress is vulnerable to Authorization Bypass Through User-Controlled Key leading to Account Takeover in all versions up to, and including, 1.2.6. This is due to the admin_user_create_cus AJAX handler lacking any authentication or capability check before passing the attacker-supplied truebooker_wp_user_id parameter directly to wp_update_user. This makes it possible for unauthenticated attackers to overwrite the email address of any WordPress user — including an administrator — and then complete the standard WordPress lost-password flow to fully take over the targeted account.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Truebooker – Appointment Booking and Scheduler System 1.2 | earliest → 1.2.6 | No fix stated |
Other CVEs of Truebooker – Appointment Booking and Scheduler System
The 7 CVEs of Truebooker – Appointment Booking and Scheduler System →
CVE-2026-14349
The TrueBooker – Appointment Booking and Scheduler System plugin for WordPress is vulnerable to authorization bypass…
9.8
Critical
CVE-2026-16142
The TrueBooker plugin for WordPress is vulnerable to Account Takeover in all versions up to, and including, 1.2.6
9.8
Critical
CVE-2026-14364
The TrueBooker – Appointment Booking and Scheduler System plugin for WordPress is vulnerable to account takeover via…
9.8
Critical
CVE-2026-14365
The TrueBooker – Appointment Booking and Scheduler System plugin for WordPress is vulnerable to authorization bypass…
9.8
Critical