TrueBooker – Appointment Booking and Scheduler System vulnerabilities

Plugin slug truebooker-appointment-booking · 25 known vulnerabilities · latest disclosed 2026-10-16 · WordPress.org page

Every listed vulnerability has a fix. Version 1.3.0 or later is not affected by any of them. If your site runs an older version, update it.

11 of 25 rated high or critical (CVSS 7 or more).

Known vulnerabilities in TrueBooker – Appointment Booking and Scheduler System

SeverityAffected versionsFixed inCVEPublishedDetails
Medium 5.31.1.9 to 1.2.91.3.0CVE-2026-942302026-10-16Advisory
Medium 5.31.1.9 to 1.2.91.3.0CVE-2026-942292026-10-16Advisory
Medium 5.31.1.9 to 1.2.91.3.0CVE-2026-942282026-10-16Advisory
Medium 5.31.1.9 to 1.2.91.3.0CVE-2026-942312026-10-16Advisory
Medium 5.3<= 1.2.91.3.0CVE-2026-397982026-10-05Advisory
Critical 9.8<= 1.2.31.2.4CVE-2026-143492026-09-15Advisory
Medium 5.3< 1.2.71.2.7CVE-2026-187772026-08-21Advisory
High 7.3< 1.2.71.2.7CVE-2026-187762026-08-21Advisory
Medium 5.3< 1.2.71.2.7CVE-2026-187782026-08-21Advisory
Medium 5.3< 1.2.71.2.7CVE-2026-187792026-08-21Advisory
High 7.3<= 1.2.61.2.7CVE-2026-733472026-08-19Advisory
Critical 9.8<= 1.2.61.2.7CVE-2026-183152026-08-18Advisory
Critical 9.8<= 1.2.61.2.7CVE-2026-161422026-08-14Advisory
Critical 9.8<= 1.2.31.2.4CVE-2026-143642026-08-06Advisory
Critical 9.8<= 1.2.31.2.4CVE-2026-143652026-08-06Advisory
High 7.5<= 1.2.21.2.3CVE-2026-131612026-07-27Advisory
Critical 9.8<= 1.2.31.2.4CVE-2026-619512026-07-17Advisory
High 7.5<= 1.2.31.2.4CVE-2026-619502026-07-16Advisory
Medium 5.3<= 1.1.91.2.0CVE-2026-488812026-06-02Advisory
Medium 5.3<= 1.1.41.1.5CVE-2026-17972026-03-30Advisory
Medium 5.3<= 1.1.61.1.7CVE-2026-396632026-02-18Advisory
Medium 5.3<= 1.1.01.1.1CVE-2025-675812025-12-15Advisory
Medium 4.3<= 1.0.71.0.8CVE-2025-475432025-05-07Advisory
Critical 10<= 1.0.31.0.4CVE-2024-69242024-08-10Advisory
Medium 4.3<= 1.0.21.0.3CVE-2024-69252024-08-10Advisory

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Questions

Is the TrueBooker – Appointment Booking and Scheduler System plugin safe to use?

All 25 known issues are fixed in current versions (1.3.0 or later). Keeping it updated is what matters.

How do I check which version of TrueBooker – Appointment Booking and Scheduler 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.

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