Booking for Appointments and Events Calendar – Amelia (Premium) 8.0 - 9.6.2 - Unauthenticated Privilege Escalation to Administrator via 'externalId'
The Booking for Appointments and Events Calendar – Amelia (Premium) plugin for WordPress is vulnerable to Privilege Escalation in versions 8.0 - 9.6.2. This is due to insufficient validation of the attacker-controlled 'type' parameter in the customer update endpoint, which allows customers to set their role to 'manager' and trigger creation of a WordPress user with the wpamelia-manager role when the 'externalId' parameter is set to 0. This makes it possible for unauthenticated attackers to escalate their privileges to administrator by first elevating to the manager role, then creating a provider entity linked to an administrator user ID and overwriting that administrator's password.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | Booking for Appointments and Events Calendar – Amelia | >= 8.0, <= 9.6.2 | 9.6.3 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-269- Platform
- WordPress
- Package
Booking for Appointments and Events Calendar – Amelia- Disclosed
- 01.09.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
Wordfence Intelligence - 0c2266b8-cc23-46de-bc80-09e3d6294854 - Wordfence Intelligence
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Copyright 2012-2026 Defiant Inc.
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Vulnerability history: Booking for Appointments and Events Calendar – Amelia
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 48
- First → latest
- 02.2022 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 9
- Medium 38
Disclosures per year
- 2022: 7
- 2023: 3
- 2024: 7
- 2025: 3
- 2026: 28
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Booking for Appointments and Events Calendar – Amelia (Premium) 8.0 - 9.6.2 - Unauthenticated Privilege Escalation to Administrator via 'externalId' this entry
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