{"cvss":0.0,"datePublished":"2026-10-13T00:00:00Z","dateUpdated":"2026-10-13T00:00:00Z","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.","dueDate":"","id":"CVE-2026-18315","kev_catalogs":["vulncheck"],"knownRansomwareCampaignUse":"Unknown","product":"TrueBooker – Appointment Booking and Scheduler System","requiredAction":"Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.","severity":"HIGH","source":"vulncheck_kev","title":"  Authorization Bypass Through User-Controlled Key","vendor":"themetechmount"}