Known vulnerabilities in Fluent Booking – The Ultimate Appointments Scheduling, Events Booking, Events Calendar Solution

The ultimate solution for booking appointments, meetings, webinars, events, sales calls, and more.

5Reported vulnerabilities

7.2Highest CVSS score

2.2.0Latest version

20,000+Active installs

What to do now

Update Fluent Booking – The Ultimate Appointments Scheduling, Events Booking, Events Calendar Solution to 2.1.1 or later. 5 of these have a fixed version available. Updating resolves them.

Plugin last updated: June 25, 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-2026-2231	High 7.2	0.3%	0 to 2.0.01 (inclusive)	`2.0.05`	March 26, 2026
CVE-2026-57638	Medium 6.4	0.2%	2.1.0 and earlier	`2.1.1`	June 26, 2026
CVE-2026-9576	Medium 4.3	0.4%	2.1.1 and earlier	`2.1.2`	June 9, 2026
CVE-2025-13756	Medium 4.3	0.2%	0 to 1.9.11 (inclusive)	`1.10.0`	December 3, 2025
CVE-2025-67597	Medium 4.3	0.2%	1.9.11 and earlier	`1.10.0`	November 25, 2025

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