Insecure Direct Object Reference in Amelia Booking Plugin for WordPress
CVE-2026-5465

8.8HIGH

Key Information:

Vendor

WordPress
Status
Booking For Appointments And Events Calendar – Amelia
Vendor
CVE Published:
7 April 2026

What is CVE-2026-5465?

The Amelia Booking for Appointments and Events Calendar plugin for WordPress contains a vulnerability that allows authenticated users with Provider (Employee) access to bypass authorization checks when updating their profile. This weakness arises from the failure to validate the externalId field, which directly maps to a WordPress user ID. As a result, attackers can inject an arbitrary externalId when modifying their profile, enabling them to take control of any WordPress account, including those with administrative privileges. It is crucial for users of this plugin to update to the latest version to safeguard against potential account takeovers.

Affected Version(s)

Booking for Appointments and Events Calendar – Amelia 0 <= 2.1.3

References

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

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Osvaldo Noe Gonzalez Del Rio
.