What’s Vulnerable › Vulnerabilities

CVE-2026-18441: LatePoint - Appointment Booking & Scheduling <= 5.6.9 - Unauthenticated Insecure Direct Object Reference to Sensitive Information Disclosure via 'customer[id]' Parameter

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-18 · updated 2026-09-19
• Weakness: CWE-639

Description

The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.6.9 via the set_customer_object due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to enumerate arbitrary customer records and disclose personally identifiable information - including first name, last name, email address, and phone number - by iterating the customer[id] parameter. This issue is exploitable only when the site is configured with customer authentication disabled (guest checkout enabled).

Affected products

• latepoint Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress: through 5.6.9

References

• https://plugins.trac.wordpress.org/browser/latepoint/tags/5.6.9/latepoint.php#L1006
• https://plugins.trac.wordpress.org/browser/latepoint/tags/5.6.9/lib/controllers/steps_controller.php#L341
• https://plugins.trac.wordpress.org/browser/latepoint/tags/5.6.9/lib/helpers/steps_helper.php#L1184
• https://plugins.trac.wordpress.org/browser/latepoint/tags/5.6.9/lib/models/model.php#L574
• https://www.wordfence.com/threat-intel/vulnerabilities/id/d80ed885-43f8-43a4-bc61-e9ef92e3207e?source=cve

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