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.
CVE-2026-1431 is a medium severity with CVSS 5.3 Vulnerability issue affecting the Plugin Booking Calendar. It affects Versions up to 10.14.13 and is fixed in 10.14.14.
CVE-2026-1431 is tracked for the Plugin Booking Calendar as medium severity with CVSS 5.3. The affected range is Versions up to 10.14.13. Update Booking Calendar to 10.14.14 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
booking
View on wordpress.org
|
| CVE | CVE-2026-1431 |
| Patched Versions |
10.14.14
|
| Affected Versions |
Versions up to 10.14.13
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Booking Calendar <= 9.9 - Unauthenticated SQL Injection
Booking Calendar <= 8.4.3 - SQL injection
Booking Calendar <= 9.1 - PHP Object Injection via Shortcode
Booking Calendar <= 10.14.8 - Unauthenticated SQL Injection via dates_to_check
Booking Calendar <= 9.4.2 - Authenticated (Admin+) SQL Injection
Booking Calendar <= 9.7.3 - Unauthenticated Stored Cross-Site Scripting
Booking Calendar <= 10.14.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via bookingcalendar Shortcode
Booking Calendar <= 10.14.7 - Authenticated (Contributor+) Stored Cross-Site Scripting
This record contains material that is subject to copyright
License: Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy. Read more
License: CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy. Read more
