CVE-2026-12113
Received Received - Intake

Sensitive Information Exposure in Appointment Booking Calendar WordPress Plugin

Publication date: 2026-07-01

Last updated on: 2026-07-01

Assigner: Wordfence

Description
The Appointment Booking Calendar plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.4.02 via the cpabc_appointments_filter_list. This makes it possible for authenticated attackers, with contributor-level access and above, to extract customer names, email addresses, phone numbers, appointment comments, and other booking personally identifiable information.

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Meta Information

Published
2026-07-01
Last Modified
2026-07-01
Generated
2026-07-01
AI Q&A
2026-07-01
EPSS Evaluated
N/A
NVD
CVE-2026-12113
EUVD
EUVD-2026-40903

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wpbookingcalendar appointment_booking_calendar to 1.4.02 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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Executive Summary

The Appointment Booking Calendar plugin for WordPress has a vulnerability in all versions up to and including 1.4.02. This vulnerability allows authenticated attackers with contributor-level access or higher to exploit the cpabc_appointments_filter_list feature to access sensitive customer information.

  • Attackers can extract personally identifiable information such as customer names, email addresses, phone numbers, appointment comments, and other booking details.
Impact Analysis

This vulnerability can lead to unauthorized disclosure of sensitive customer data if an attacker has contributor-level access or above on the WordPress site.

  • Exposure of personally identifiable information (PII) such as names, emails, phone numbers, and appointment comments.
  • Potential privacy violations and loss of customer trust.
  • Increased risk of targeted phishing or social engineering attacks using the exposed data.
Compliance Impact

This vulnerability allows authenticated attackers with contributor-level access and above to extract personally identifiable information (PII) such as customer names, email addresses, phone numbers, and appointment comments from the Appointment Booking Calendar plugin for WordPress.

Exposure of such sensitive personal data can lead to non-compliance with data protection regulations like GDPR and HIPAA, which require the protection of personal and health-related information from unauthorized access.

Organizations using this plugin may face increased risk of data breaches and potential regulatory penalties if this vulnerability is exploited and the PII is accessed or disclosed improperly.

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