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.

Affected Version(s)

Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin 0 <= 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
.