Is CVE-2026-5465 actively exploited?

No active exploitation of CVE-2026-5465 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-5465 be exploited remotely?

Yes. CVE-2026-5465 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-5465?

CVE-2026-5465 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2026-5465

HIGH

CVE-2026-5465

CWE-639Published: April 7, 2026· Updated: Apr 7, 2026

8.8

CVSS v3.1

EPSS:0.05%probability of exploitation in 30 daysPercentile:15.4th

Official Description

The Booking for Appointments and Events Calendar – Amelia plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.1.3. This is due to the `UpdateProviderCommandHandler` failing to validate changes to the `externalId` field when a Provider (Employee) user updates their own profile. The `externalId` maps directly to a WordPress user ID and is passed to `wp_set_password()` and `wp_update_user()` without authorization checks. This makes it possible for authenticated attackers, with Provider-level (Employee) access and above, to take over any WordPress account — including Administrator — by injecting an arbitrary `externalId` value when updating their own provider profile.

NVD Source

Technical Analysis

CVE-2026-5465 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.