CVE-2026-1704
Received Received - Intake
IDOR Vulnerability in Simply Schedule Appointments Plugin Exposes Data

Publication date: 2026-03-13

Last updated on: 2026-03-13

Assigner: Wordfence

Description
The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.6.9.29. This is due to the `get_item_permissions_check` method granting access to users with the `ssa_manage_appointments` capability without validating staff ownership of the requested appointment. This makes it possible for authenticated attackers, with custom-level access and above (users granted the ssa_manage_appointments capability, such as Team Members), to view appointment records belonging to other staff members and access sensitive customer personally identifiable information via the appointment ID parameter.
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Meta Information
Published
2026-03-13
Last Modified
2026-03-13
Generated
2026-06-16
AI Q&A
2026-03-13
EPSS Evaluated
2026-06-15
NVD
CVE-2026-1704
EUVD
EUVD-2026-11754
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
simply_schedule_appointments appointment_booking_calendar to 1.6.9.29 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
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Executive Summary

The vulnerability exists in the Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin for WordPress, affecting all versions up to and including 1.6.9.29.

It is an Insecure Direct Object Reference (IDOR) issue caused by the `get_item_permissions_check` method granting access to users with the `ssa_manage_appointments` capability without verifying if the user owns the requested appointment.

As a result, authenticated users with custom-level access or higher (such as Team Members) can view appointment records of other staff members and access sensitive customer personally identifiable information by manipulating the appointment ID parameter.

Impact Analysis

This vulnerability allows unauthorized users with certain permissions to access appointment records that do not belong to them.

The impact includes exposure of sensitive customer personally identifiable information (PII), which could lead to privacy violations, loss of customer trust, and potential misuse of the data.

Since the vulnerability requires authenticated access with specific capabilities, it may be exploited by insiders or compromised accounts.

Compliance Impact

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Detection Guidance

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Mitigation Strategies

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