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    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' appointment records, including names, email addresses, phone numbers and notes, across the whole site.

    Published:Aug 3, 2026
    Last Modified:Aug 3, 2026
    EPS:Aug 3, 2026
    EPSS Score:0.00132
    CVSS Score:6.5

    Affected Products

    Vendor
    Nsqua
    Product
    Simply Schedule Appointments
    Vendor
    Wordpress
    Product
    Wordpress

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-863 Incorrect Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-16540 (CVSS 7.5) — The Simply Schedule Appointments WordPress plugin before 1.6.12.6 does not correctly restrict a bulk appointme…
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    CVE-2024-7876 (CVSS 4.8) — The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin WordPress plugin before 1.6.7.5…
    CVE-2024-7129 (CVSS 7.2) — The Appointment Booking Calendar WordPress plugin before 1.6.7.43 does not escape template syntax provided via…
    CVE-2024-1760 (CVSS 4.3) — The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnera…
    CVE-2023-50851 (CVSS 7.6) — Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in N Square…
    CVE-2022-2374 (CVSS 4.8) — The Simply Schedule Appointments WordPress plugin before 1.5.7.7 does not sanitise and escape some of its sett…
    CVE-2022-2373 (CVSS 5.3) — The Simply Schedule Appointments WordPress plugin before 1.5.7.7 is missing authorisation in a REST endpoint, …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High