CVE-2026-14216
Deferred Deferred - Pending Action

Unauthenticated Notification Queue Exploitation in Booking Calendar

Publication date: 2026-08-26

Last updated on: 2026-08-26

Assigner: WPScan

Description
The Booking for Appointments and Events Calendar WordPress plugin before 2.4.7 does not require authentication before processing its pending notification queue, allowing an unauthenticated user to force the dispatch of queued notifications and integration callbacks.

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Meta Information

Published
2026-08-26
Last Modified
2026-08-26
Generated
2026-09-16
AI Q&A
2026-08-26
EPSS Evaluated
2026-09-14
NVD
CVE-2026-14216
EUVD
EUVD-2026-66269

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wp_event_calendar booking_for_appointments_and_events_calendar to 2.4.7 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-287 When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

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Executive Summary

This vulnerability affects the Booking for Appointments and Events Calendar WordPress plugin before version 2.4.7. It allows unauthenticated users to force the dispatch of queued notifications and integration callbacks without requiring authentication.

Detection Guidance

To detect this vulnerability, check if your WordPress site uses the Booking for Appointments and Events Calendar plugin version prior to 2.4.7. Inspect network traffic for unauthenticated requests triggering notification dispatches or integration callbacks. Review server logs for unusual activity from unauthenticated sources.

Impact Analysis

An unauthenticated attacker could trigger unwanted notifications or callbacks, potentially leading to spam, data leaks, or integration abuse. This may disrupt operations or expose sensitive information.

Compliance Impact

This vulnerability could potentially affect compliance with GDPR and HIPAA by allowing unauthorized access to notification queues, which may include sensitive user data. Unauthenticated users could force the dispatch of notifications containing personal or health information, violating data protection requirements for confidentiality and access control.

Mitigation Strategies

Update the Booking for Appointments and Events Calendar WordPress plugin to version 2.4.7 or later to address the vulnerability.

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