HomeWordPress vulnerabilitiesAppointment Booking Calendar
Appointment Booking Calendar vulnerabilities
Appointment Booking Calendar has 13 known vulnerabilities in this database. The most recent published record is dated 1 Jul 2026.
- Known vulnerabilities
- 13
- Active installs
- 1,000+
- Latest version
- 1.4.05
- Last updated
- 11 Aug 2026
- Most recent
- 1 Jul 2026
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| Sensitive data exposure CVE-2026-12113 | Medium 4.3 | Up to 1.4.02 | Fixed in a later version (latest 1.4.05) | 1 Jul 2026 |
| Sensitive data exposure CVE-2026-12111 | Medium 4.3 | Up to 1.4.01 | Fixed in a later version (latest 1.4.05) | 18 Jun 2026 |
| Broken access control CVE-2025-13317 | Medium 5.3 | Up to 1.3.96 | Fixed in a later version (latest 1.4.05) | 22 Nov 2025 |
| Security weakness CVE-2024-12274 | High 7.5 | Before 1.1.23 | Fixed in 1.1.23 | 13 Jan 2025 |
| Remote code execution CVE-2024-7129 | High 7.2 | Before 1.6.7.43 | Fixed in 1.6.7.43 | 13 Sep 2024 |
| Cross-site request forgery (CSRF) CVE-2024-0856 | High 8.8 | Before 1.3.83 | Fixed in 1.3.83 | 20 Mar 2024 |
| Broken access control CVE-2022-43482 | Medium 4.3 | Before 1.3.70 | Fixed in 1.3.70 | 18 Nov 2022 |
| Cross-site scripting (XSS) CVE-2020-9371 | Medium 4.8 | Before 1.3.35 | Fixed in 1.3.35 | 4 Mar 2020 |
| Remote code execution CVE-2020-9372 | High 7.8 | Before 1.3.35 | Fixed in 1.3.35 | 4 Mar 2020 |
| SQL injection CVE-2016-10916 | Critical 9.8 | Before 1.1.24 | Fixed in 1.1.24 | 22 Aug 2019 |
| Cross-site scripting (XSS) CVE-2019-14791 | Medium 6.1 | Not yet published | Check for an update | 9 Aug 2019 |
| Cross-site scripting (XSS) CVE-2015-7320 | Not scored | Up to 1.1.7 | Fixed in a later version (latest 1.4.05) | 29 Sep 2015 |
| SQL injection CVE-2015-7319 | Not scored | Up to 1.1.7 | Fixed in a later version (latest 1.4.05) | 29 Sep 2015 |
Read the published descriptions
- CVE-2026-12113, 1 Jul 2026
- The Appointment Booking Calendar plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.4.02 via the cpabc_appointments_filter_list. This makes it possible for authenticated attackers, with contributor-level access and above, to extract customer names, email addresses, phone numbers, appointment comments, and other booking personally identifiable information. CVE record
- CVE-2026-12111, 18 Jun 2026
- The Appointment Booking Calendar plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 1.4.01. This is due to insufficient authorization and missing per-calendar ownership checks in the cpabc_appointments_calendar_load2() function, which is reachable via the cpabc_calendar_load2=1 query parameter in wp-admin and only checks is_admin() && current_user_can('edit_posts'), a capability available to Contributor-level users and above. This makes it possible for authenticated attackers with Contributor-level access and above to supply an arbitrary calendar ID via the id parameter and extract customer booking information, including email addresses, names, phone numbers, booking times, and comments, from any calendar managed by the plugin. CVE record
- CVE-2025-13317, 22 Nov 2025
- The Appointment Booking Calendar plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.3.96. This is due to the plugin exposing an unauthenticated booking processing endpoint (cpabc_appointments_check_IPN_verification) that trusts attacker-supplied payment notifications without verifying their origin, authenticity, or requiring proper authorization checks. This makes it possible for unauthenticated attackers to arbitrarily confirm bookings and insert them into the live calendar via the 'cpabc_ipncheck' parameter, triggering administrative and customer notification emails and disrupting operations. CVE record
- CVE-2024-12274, 13 Jan 2025
- The Appointment Booking Calendar Plugin and Scheduling Plugin WordPress plugin before 1.1.23 export settings functionality exports data to a public folder, with an easily guessable file name, allowing unauthenticated attackers to access the exported files (if they exist). CVE record
- CVE-2024-7129, 13 Sep 2024
- The Appointment Booking Calendar WordPress plugin before 1.6.7.43 does not escape template syntax provided via user input, leading to Twig Template Injection which further exploited can result to remote code Execution by high privilege such as admins CVE record
- CVE-2024-0856, 20 Mar 2024
- The Appointment Booking Calendar WordPress plugin before 1.3.83 does not have CSRF checks in some places, which could allow attackers to make logged in users perform unwanted actions via CSRF attacks such as adding a booking to the calendar without paying. CVE record
- CVE-2022-43482, 18 Nov 2022
- Missing Authorization vulnerability in Appointment Booking Calendar plugin <= 1.3.69 on WordPress. CVE record
- CVE-2020-9371, 4 Mar 2020
- Stored XSS exists in the Appointment Booking Calendar plugin before 1.3.35 for WordPress. In the cpabc_appointments.php file, the Calendar Name input could allow attackers to inject arbitrary JavaScript or HTML. CVE record
- CVE-2020-9372, 4 Mar 2020
- The Appointment Booking Calendar plugin before 1.3.35 for WordPress allows user input (in fields such as Description or Name) in any booking form to be any formula, which then could be exported via the Bookings list tab in /wp-admin/admin.php?page=cpabc_appointments.php. The attacker could achieve remote code execution via CSV injection. CVE record
- CVE-2016-10916, 22 Aug 2019
- The appointment-booking-calendar plugin before 1.1.24 for WordPress has SQL injection, a different vulnerability than CVE-2015-7319. CVE record
- CVE-2019-14791, 9 Aug 2019
- The Appointment Booking Calendar plugin 1.3.18 for WordPress allows XSS via the wp-admin/admin-post.php editionarea parameter. CVE record
- CVE-2015-7320, 29 Sep 2015
- Multiple cross-site scripting (XSS) vulnerabilities in cpabc_appointments_admin_int_bookings_list.inc.php in the Appointment Booking Calendar plugin before 1.1.8 for WordPress allow remote attackers to inject arbitrary web script or HTML via unspecified vectors. CVE record
- CVE-2015-7319, 29 Sep 2015
- SQL injection vulnerability in cpabc_appointments_admin_int_calendar_list.inc.php in the Appointment Booking Calendar plugin before 1.1.8 for WordPress allows remote attackers to execute arbitrary SQL commands via unspecified vectors related to updating the username. CVE record
What to do if you run Appointment Booking Calendar
If you run Appointment Booking Calendar, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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