Recommended action window: Monitor and triage in normal cycle
NVD 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.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
🚨 CVE-2026-18315 - critical 🚨 TrueBooker <= 1.2.6 - Unauthenticated Authorization Bypass > TrueBooker – Appointment Booking and Scheduler System WordPress plugin <= 1.2.6 conta... 👾 https://cloud.projectdiscovery.io/library/CVE-2026-18315 @pdnuclei #NucleiTemplates #cve