Known vulnerabilities in Bookit — Booking & Appointment Calendar

Appointment booking and event calendar for WordPress. Services, staff, availability, shortcodes, and email notifications. Prevents double-booking.

5Reported vulnerabilities

9.8Highest CVSS score

2.6.0.1Latest version

4,000+Active installs

What to do now

Update Bookit — Booking & Appointment Calendar to 2.5.4.1 or later. 5 of these have a fixed version available. Updating resolves them.

Plugin last updated: July 29, 2026 / Tested up to WordPress: 7.0.4 / View on wordpress.org

Reported vulnerabilities

Ordered by how urgently they need attention — whether a vulnerability is actually being exploited, and how likely exploitation is, rather than CVSS severity alone.

CVE	Severity	Exploit probability next 30 days	Affected versions	Fixed in	Published
CVE-2023-2834	Critical 9.8	1.9%	2.3.7 and earlier	`2.3.8`	June 30, 2023
CVE-2025-12633	High 7.5	0.3%	0 to 2.5.0 (inclusive)	`2.5.1`	November 12, 2025
CVE-2023-50852	Medium 6.6	0.5%	Before 2.4.4	`2.4.4`	December 21, 2023
CVE-2025-12841	Medium 5.3	0.7%	0 up to (but not including) 2.5.1	`2.5.1`	December 12, 2025
CVE-2026-40780	Medium 5.3	0.3%	2.5.1 and earlier	`2.5.4.1`	April 22, 2026

Sources: vulnerability records from NVD, exploitation from CISA KEV, exploit probability from EPSS. Affected versions come from CPE ranges or from the reporting CNA.