WordPress booking-calendar has 10 known advisories in the phpwarden feed. Feed 2026.10.29.1, updated 2026-10-28.
| CVE | Title | Severity | CVSS | Affected | Fixed in |
|---|---|---|---|---|---|
| CVE-2018-20556 | SQL injection vulnerability in Booking Calendar plugin 8.4.3 for WordPress allows remote attackers to execute arbitrary SQL commands via the | high | 8.8 | =8.4.3 | – |
| CVE-2022-3982 | The Booking calendar, Appointment Booking System WordPress plugin before 3.2.2 does not validate uploaded files, which could allow unauthent | critical | 9.8 | <3.2.2 | 3.2.2 |
| CVE-2022-1463 | The Booking Calendar plugin for WordPress is vulnerable to PHP Object Injection via the [bookingflextimeline] shortcode in versions up to, a | high | 8.8 | <=9.1 | – |
| CVE-2018-10363 | An issue was discovered in the WpDevArt "Booking calendar, Appointment Booking System" plugin 2.2.2 for WordPress. Multiple parameters allow | high | 7.5 | =2.2.2 | – |
| CVE-2021-25040 | The Booking Calendar WordPress plugin before 8.9.2 does not sanitise and escape the booking_type parameter before outputting it back in an a | medium | 6.1 | <8.9.2 | 8.9.2 |
| CVE-2018-5673 | An issue was discovered in the booking-calendar plugin 2.1.7 for WordPress. CSRF exists via wp-admin/admin.php. | high | 8.8 | =2.1.7 | – |
| CVE-2018-5670 | An issue was discovered in the booking-calendar plugin 2.1.7 for WordPress. XSS exists via the wp-admin/admin.php sale_conditions[count][] p | medium | 4.8 | =2.1.7 | – |
| CVE-2018-5671 | An issue was discovered in the booking-calendar plugin 2.1.7 for WordPress. XSS exists via the wp-admin/admin.php extra_field1[items][field_ | medium | 4.8 | =2.1.7 | – |
| CVE-2018-5672 | An issue was discovered in the booking-calendar plugin 2.1.7 for WordPress. XSS exists via the wp-admin/admin.php form_field5[label] paramet | medium | 4.8 | =2.1.7 | – |
| CVE-2023-4620 | The Booking Calendar WordPress plugin before 9.7.3.1 does not sanitize and escape some of its booking from data, allowing unauthenticated us | medium | 6.1 | <9.7.3.1 | 9.7.3.1 |
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