CVE-2026-18315
TrueBooker25/100
exploitation likelihood
CVSS9.8
EPSS0.6%
KEVNone
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
EPSS 0.006 (probability of exploitation) · CVSS base 9.8 · 1 public PoC/exploit reference(s) available
Public PoC / Exploit1
Defensive review only — these references demonstrate exploitability.
References5