What is CVE-2026-16540?

CVE-2026-16540 is a vulnerability in Simply Schedule Appointments, classified under CWE-863 INCORRECT AUTHORIZATION. Published 2026-08-02.

Is CVE-2026-16540 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Simply Schedule Appointments

CVE-2026-16540

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 acr…

Affected products

Unknown Simply Schedule Appointments — versions 0

Public proof-of-concept exploits

huseyn0vs/CVE-2026-16540-SimplyScheduleAppointments

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-16540?: CVE-2026-16540 is a vulnerability in Simply Schedule Appointments, classified under CWE-863 INCORRECT AUTHORIZATION. Published 2026-08-02.
Is CVE-2026-16540 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.