Description
The Booking Calendar plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the wpbc_ajax_WPBC_FLEXTIMELINE_NAV() function in all versions up to, and including, 10.14.13. This makes it possible for unauthenticated attackers to retrieve booking information including customer names, phones and emails.
Published: 2026-01-31
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Unauthorized Data Access
Action: Immediate Patch
AI Analysis

Impact

The Booking Calendar plugin for WordPress permits unauthenticated users to invoke an AJAX function that reveals detailed booking information, including customer names, phone numbers, and email addresses, because the function lacks a capability check. This missing authorization check leads to a confidentiality breach and corresponds to CWE‑862.

Affected Systems

WordPress sites running the wpdevelop:Booking Calendar plugin, versions up to and including 10.14.13, are affected.

Risk and Exploitability

The vulnerability has a CVSS score of 5.3 and an EPSS score of less than 1 %, indicating moderate severity but a low likelihood of exploitation. It is not listed in CISA’s Known Exploited Vulnerabilities catalog. The attack vector is an unauthenticated AJAX request; attackers only need access to the site’s public URL to retrieve sensitive booking data.

Generated by OpenCVE AI on April 16, 2026 at 01:22 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade the Booking Calendar plugin to the latest available version to add the missing capability check.
  • If an update is unavailable, disable or delete the plugin to eliminate the exposure.
  • Configure web‑application firewalls or server rules to block unauthenticated access to the wpbc‑ajax.php endpoint, or further restrict it to authenticated users only.

Generated by OpenCVE AI on April 16, 2026 at 01:22 UTC.

Tracking

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Advisories

No advisories yet.

History

Tue, 03 Feb 2026 15:00:00 +0000

Type Values Removed Values Added
First Time appeared Wordpress
Wordpress wordpress
Wpdevelop
Wpdevelop booking Calendar
Vendors & Products Wordpress
Wordpress wordpress
Wpdevelop
Wpdevelop booking Calendar

Mon, 02 Feb 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Sat, 31 Jan 2026 05:00:00 +0000

Type Values Removed Values Added
Description The Booking Calendar plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the wpbc_ajax_WPBC_FLEXTIMELINE_NAV() function in all versions up to, and including, 10.14.13. This makes it possible for unauthenticated attackers to retrieve booking information including customer names, phones and emails.
Title Booking Calendar <= 10.14.13 - Missing Authorization to Unauthenticated Booking Details Exposure
Weaknesses CWE-862
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

Wordpress Wordpress
Wpdevelop Booking Calendar
cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-04-08T16:34:56.175Z

Reserved: 2026-01-26T10:49:01.641Z

Link: CVE-2026-1431

cve-icon Vulnrichment

Updated: 2026-02-02T17:58:18.891Z

cve-icon NVD

Status : Deferred

Published: 2026-01-31T05:16:32.423

Modified: 2026-04-15T00:35:42.020

Link: CVE-2026-1431

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-16T01:30:20Z

Weaknesses