Simply Schedule Appointments exposes and can delete every booking
Simply Schedule Appointments before 1.6.12.6 does not bind a bulk appointment operation to records owned by the requester. An unauthenticated visitor can retrieve the personal data stored for every appointment; on premium editions, the same authorization failure also permits permanent deletion.
- Component
- Simply Schedule Appointments
- Plugin slug
simply-schedule-appointments- Affected
- < 1.6.12.6
- Safe version
1.6.12.6- Published
- Aug 02, 2026
This CVE was published Aug 02, 2026 and is one of 38 known issues for this plugin.
Update, patch or deactivate.
Update Simply Schedule Appointments to 1.6.12.6 or later. Review bulk appointment requests and deleted records, restore bookings from trusted backups where possible, identify affected customers and handle exposed personal data according to applicable privacy obligations.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Simply Schedule Appointments WordPress plugin before 1.6.12.6 does not correctly restrict a bulk appointment operation to the requester's own records, allowing unauthenticated users to retrieve the personal data of all appointments across the site and, on premium editions, to permanently delete them.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N