Amelia <= 2.1.3 - Insecure Direct Object Reference to Authenticated (Employee+) Privilege Escalation via 'externalId' Parameter

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

通过用户控制密钥绕过授权机制

WordPress plugin Booking for Appointments and Events Calendar – Amelia 安全漏洞

WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Booking for Appointments and Events Calendar – Amelia 2.1.3及之前版本存在安全漏洞，该漏洞源于UpdateProviderCommandHandler未能验证

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