Booking calendar, Appointment Booking System vulnerabilities
Plugin slug booking-calendar · 23 known vulnerabilities · latest disclosed 2026-08-18 · WordPress.org page
5 vulnerabilities have no fixed version yet. If you use this plugin, consider disabling or replacing it until a fix is released.
9 of 23 rated high or critical (CVSS 7 or more).
Known vulnerabilities in Booking calendar, Appointment Booking System
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| Medium 5.3 | <= 3.2.36 | No fix yet | CVE-2026-73395 | 2026-08-18 | Advisory |
| High 7.2 | <= 3.2.36 | No fix yet | CVE-2026-14334 | 2026-08-17 | Advisory |
| Medium 5.3 | <= 3.2.36 | No fix yet | CVE-2026-8840 | 2026-08-14 | Advisory |
| Medium 5.3 | <= 3.2.36 | No fix yet | CVE-2026-57778 | 2026-07-02 | Advisory |
| High 7.2 | <= 3.2.36 | No fix yet | CVE-2026-25435 | 2026-03-18 | Advisory |
| Medium 5.3 | <= 3.2.30 | 3.2.31 | CVE-2025-67574 | 2025-12-15 | Advisory |
| Medium 5.9 | <= 3.2.17 | 3.2.18 | CVE-2026-15289 | 2025-07-01 | Advisory |
| Medium 6.1 | <= 3.2.19 | 3.2.20 | CVE-2024-12077 | 2025-01-06 | Advisory |
| Medium 6.5 | <= 3.2.19 | 3.2.20 | CVE-2024-10856 | 2024-12-23 | Advisory |
| High 7.2 | <= 3.2.15 | 3.2.16 | CVE-2024-9504 | 2024-11-25 | Advisory |
| Medium 4.1 | <= 3.2.3 | 3.2.4 | CVE-2023-24407 | 2024-01-27 | Advisory |
| High 7.2 | <= 3.2.11 | 3.2.12 | none | 2023-10-29 | Advisory |
| High 7.2 | < 3.2.9 | 3.2.9 | none | 2023-09-12 | Advisory |
| High 7.2 | <= 3.2.6 | 3.2.7 | CVE-2022-47428 | 2023-04-19 | Advisory |
| Medium 5.5 | <= 3.2.3 | 3.2.4 | CVE-2022-47438 | 2023-01-27 | Advisory |
| Medium 5.3 | <= 3.2.3 | 3.2.4 | CVE-2023-24373 | 2023-01-27 | Advisory |
| Medium 4.3 | <= 3.2.3 | 3.2.4 | CVE-2023-24388 | 2023-01-27 | Advisory |
| Critical 9.8 | <= 3.2.1 | 3.2.2 | CVE-2022-3982 | 2022-11-21 | Advisory |
| High 7.5 | <= 2.2.2 | 2.2.3 | CVE-2018-10363 | 2018-06-07 | Advisory |
| High 8.8 | < 2.1.8 | 2.1.8 | CVE-2018-5673 | 2018-01-12 | Advisory |
| Medium 5.5 | < 2.1.8 | 2.1.8 | CVE-2018-5670 | 2018-01-11 | Advisory |
| Medium 5.5 | < 2.1.8 | 2.1.8 | CVE-2018-5672 | 2018-01-11 | Advisory |
| Medium 5.5 | < 2.1.8 | 2.1.8 | CVE-2018-5671 | 2018-01-11 | Advisory |
Check if a site is affected
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Questions
Is the Booking calendar, Appointment Booking System plugin safe to use?
5 known issue(s) have no fix yet, so check the table above before using it.
How do I check which version of Booking calendar, Appointment Booking System my site runs?
In WordPress go to Plugins > Installed Plugins. From the outside, the free PluginPeek scan below reads the version from the site's public files.
How do I fix a vulnerable plugin?
Make a full backup, then update it from Dashboard > Updates and check the site afterwards. If you would rather not, we can do it for a fixed $99, paid after you have checked the site.