Insecure Direct Object Reference in Appointment Booking Calendar Plugin for WordPress
CVE-2026-1704

4.3MEDIUM

Key Information:

Vendor

WordPress
Status
Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin
Vendor
CVE Published:
13 March 2026

What is CVE-2026-1704?

The Simply Schedule Appointments Booking Plugin for WordPress contains a vulnerability that allows authenticated users with the 'ssa_manage_appointments' capability to access others' appointment records without verifying staff ownership. This oversight permits unauthorized viewing of customer personally identifiable information through the appointment ID parameter, raising significant privacy concerns.

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Affected Version(s)

Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin * <= 1.6.9.29

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/simply-schedul...
https://plugins.trac.wordpress.org/browser/simply-schedul...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Itthidej Aramsri
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