CVE-2026-14224

The Easy Appointments WordPress plugin through 3.12.26 does not verify that the appointment targeted by its customer-data update action belongs to the current user; the action only checks a shared nonce that any authenticated user can obtain from their own appointment's edit form. A subscriber-level user with an appointment of their own can therefore reuse that nonce to overwrite the customer metadata (email, name, phone, description) of another user's appointment. Because the Easy Appointments WordPress plugin through 3.12.26 then treats that metadata as the appointment's contact data, a subsequent administrator status change with customer notifications enabled delivers the victim's appointment notification to the attacker-controlled email address.

We have discovered 583 live websites that are affected by CVE-2026-14224.

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Affected Software

Product	Easy Appointments
Category	Wordpress Plugins
Vulnerable Domains	583 live websites (100% of Easy Appointments install base)
Vulnerable Versions	from 0 through 3.12.26
Vulnerable Versions Count	49 versions ( 100% of all versions)