Insecure Direct Object References in Booking Calendar and Appointment Booking System Plugin
CVE-2026-73395

6.5MEDIUM

Key Information:

Vendor

WordPress
Status
Booking Calendar, Appointment Booking System
Vendor
CVE Published:
18 August 2026

What is CVE-2026-73395?

The Booking Calendar and Appointment Booking System plugins for WordPress exhibit a vulnerability that allows unauthorized users to access sensitive data through insecure direct object references. This issue arises when users can manipulate the parameters to gain unauthorized access to objects. As a result, attackers may exploit this flaw to expose sensitive information without proper authentication, potentially leading to data breaches and privacy concerns.

Affected Version(s)

Booking calendar, Appointment Booking System <= 3.2.36

References

https://patchstack.com/database/wordpress/plugin/booking-...
vdb-entry

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jakub Herman | Patchstack Bug Bounty Program
.