CVE-2026-65513 WordPress Simply Schedule Appointments plugin <= 1.6.12.10 - Cross Site Scripting (XSS) vulnerability

Unauthenticated Cross Site Scripting XSS in Simply Schedule Appointments = 1.6.12.10 versions...

CVE-2026-65508

The CVE-2026-65508 entry concerns the WordPress plugin Simply Schedule Appointments (vulnerable:

CVE-2026-15254

The Simply Schedule Appointments WordPress plugin before 1.6.12.11 does not perform a capability check on an administrative appointment-listing shortcode, and its per-user result scoping fails open for non-staff users, allowing users with the Contributor role and above to disclose all customers'...

CVE-2026-15254 Simply Schedule Appointments < 1.6.12.11 - Contributor+ Sensitive Data Disclosure via Admin Shortcode

The Simply Schedule Appointments WordPress plugin before 1.6.12.11 does not perform a capability check on an administrative appointment-listing shortcode, and its per-user result scoping fails open for non-staff users, allowing users with the Contributor role and above to disclose all customers'...

PT-2026-67068

The Simply Schedule Appointments WordPress plugin before 1.6.12.11 does not perform a capability check on an administrative appointment-listing shortcode, and its per-user result scoping fails open for non-staff users, allowing users with the Contributor role and above to disclose all customers'...

CVE-2026-16540 Simply Schedule Appointments < 1.6.12.6 - Unauthenticated Appointment Data Disclosure and Mass Deletion via purge Endpoint

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 dele...

EUVD-2026-51951

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 dele...

CVE-2026-13400

Simply Schedule Appointments is vulnerable to unauthenticated Stored Cross-Site Scripting in all versions up to and including 1.6.12.2. The root cause is a sanitization-ordering defect: the rendered notification content is decoded back into live HTML after it has already passed through the Simply...

CVE-2026-13400 Simply Schedule Appointments < 1.6.12.4 - Unauthenticated Stored XSS via Booking Customer Information

Simply Schedule Appointments is vulnerable to unauthenticated Stored Cross-Site Scripting in all versions up to and including 1.6.12.2. The root cause is a sanitization-ordering defect: the rendered notification content is decoded back into live HTML after it has already passed through the Simply...

CVE-2026-13400

CVE-2026-13400 affects the WordPress plugin Simply Schedule Appointments (all versions up to 1.6.12.2). The root cause is a sanitization-ordering defect: rendered notification content is decoded back into live HTML after passing through the plugin before 1.6.12.4’s wp_kses_post() filter, allowing...

CVE-2026-59523

Missing Authorization vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simply Schedule Appointments: from n/a through = 1.6.11.11...

CVE-2026-57812

Missing Authorization vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simply Schedule Appointments: from n/a through = 1.6.12.4...

CVE-2026-59523

Missing Authorization vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simply Schedule Appointments: from n/a through = 1.6.11.11...

CVE-2026-59523

CVE-2026-59523 affects the WordPress plugin Simply Schedule Appointments (

CVE-2026-57812

Summary: CVE-2026-57812 concerns the WordPress plugin “Simply Schedule Appointments.” In affected versions (up to and including 1.6.12.4), the issue is described as a Missing Authorization vulnerability caused by misconfigured access control within the Simply Schedule Appointments plugin, enablin...

CVE-2026-59523 WordPress Simply Schedule Appointments plugin <= 1.6.11.11 - Broken Access Control vulnerability

Missing Authorization vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simply Schedule Appointments: from n/a through = 1.6.11.11...

CVE-2026-57812 WordPress Simply Schedule Appointments plugin <= 1.6.12.4 - Broken Access Control vulnerability

Missing Authorization vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simply Schedule Appointments: from n/a through = 1.6.12.4...

CVE-2026-59523 WordPress Simply Schedule Appointments plugin <= 1.6.11.11 - Broken Access Control vulnerability

Missing Authorization vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simply Schedule Appointments: from n/a through = 1.6.11.11...

CVE-2026-57812

Missing Authorization vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simply Schedule Appointments: from n/a through = 1.6.12.4...

WordPress Simply Schedule Appointments plugin <= 1.6.12.4 - Broken Access Control vulnerability

Broken Access Control vulnerability discovered by hio in WordPress Plugin Simply Schedule Appointments versions = 1.6.12.4...