CVE-2026-100163
Vulnérabilité élevée dans Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress (latepoint)
Description
The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Authentication Bypass in versions up to, and including, 5.7.2 via the OsCustomerHelper::create_wp_user_for_customer() helper reached from the public process_step_customer() booking step. When the 'Use WordPress users as customers' option is enabled, the helper falls back from email_exists() to username_exists( $customer->email ), which matches any WordPress user whose user_login equals the victim customer's email even when that user's user_email is completely different, and links that WordPress user's ID into the victim's LatePoint customer row (only privileged roles are excluded; Subscriber is allowed). This makes it possible for authenticated attackers, with Subscriber-level access and above, to take over another customer's LatePoint account — accessing their bookings, service, agent, and calendar data, and having the victim customer's email overwritten with the attacker's on next login — by holding a Subscriber account whose user_login equals the victim's email and submitting an unauthenticated public booking step registration request.
Gravité et risque d'exploitation
CVE-2026-100163 obtient un score CVSS de 7.4/10, soit une gravité élevée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.44 %, ce qui la place devant 37.2 % des CVE référencées.
Que faire ?
- Vérifiez si Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress (versions <=5.7.2, 0) est présent sur votre parc.
- Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
- À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
- Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.
Références
- https://www.wordfence.com/threat-intel/vulnerabilities/id/2a942d71-7172-4e02-9faa-3a2c1c9e7fbd?source=cve
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.2/lib/helpers/customer_helper.php#L259
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.2/lib/helpers/customer_helper.php#L274
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.2/lib/helpers/steps_helper.php#L2156
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.2/lib/helpers/steps_helper.php#L2146
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.2/latepoint.php#L1072
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.3/lib/helpers/customer_helper.php