CVE-2026-1431 MEDIUM

CVE-2026-1431: Booking Calendar <= 10.14.13 - Missing Authorization to Unauthenticated Booking Details Exposure

Vendor Wpdevelop
Product Booking Calendar
Weakness CWE-862 · Missing authorization
Published January 31, 2026
Last update April 8, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

What the vulnerability does

01Description

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.

Explanation of Vulnerability in Simple Terms

02Summary

Booking Calendar versions up to 10.14.13 lack proper authorization checks, allowing unauthenticated attackers to read sensitive information. The vulnerability requires only network access and no user interaction. An attacker can retrieve limited data without authentication, though integrity and availability are not affected.

What an attacker can do

03Attacker Capabilities

Read sensitive information from the plugin without logging in.

Potential impact on your site

04Site Impact

Unauthorized users can access confidential booking or calendar data exposed by the plugin.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

January 31, 2026 CVE published
April 8, 2026 Record updated