Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Unknown Simply Schedule Appointments — Simply Schedule Appointments < 1.6.12.6 - Unauthenticated Appointment Data Disclosure and Mass Deletion via purge Endpoint
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L N N U H N N 7.5 .0036 29.1 —
AFFECTED
Product Versions Fixed
Simply Schedule Appointments unspecified —
TIMELINE
Jul 22 Reserved by WPScan
Aug 2 Published (CNA: WPScan)
Aug 3 EXPLOIT PUBLISHED — CVE-2026-16540 (Unknown Simply Schedule Appointments). Public exploit reference added.
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| July 22, 2026 | Reserved | Reserved by WPScan |
| August 2, 2026 | Published | Published (CNA: WPScan) |
| August 3, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-16540 (Unknown Simply Schedule Appointments). Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Unknown | Simply Schedule Appointments | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-16540 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.