Description
The Booking Calendar plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 11.4.3 via the wpbc_is_show_popover_in_flex_timeline() function. This makes it possible for unauthenticated attackers to extract sensitive data including names, email addresses, and phone numbers of customers who have made bookings.
Published: 2026-10-10
Score: 5.3 Medium
EPSS: n/a
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Sat, 10 Oct 2026 05:45:00 +0000

Type Values Removed Values Added
Description The Booking Calendar plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 11.4.3 via the wpbc_is_show_popover_in_flex_timeline() function. This makes it possible for unauthenticated attackers to extract sensitive data including names, email addresses, and phone numbers of customers who have made bookings.
Title Booking Calendar <= 11.4.3 - Unauthenticated Sensitive Information Exposure in 'WPBC_FLEXTIMELINE_NAV' AJAX Action
Weaknesses CWE-200
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-10-10T05:30:55.792Z

Reserved: 2026-07-31T15:48:48.687Z

Link: CVE-2026-18496

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-10T06:16:42.543

Modified: 2026-10-10T06:16:42.543

Link: CVE-2026-18496

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-10T06:45:17Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor