CVE-2026-9055 (GCVE-0-2026-9055)

Vulnerability from cvelistv5 – Published: 2026-09-02 04:26 – Updated: 2026-09-02 12:57
VLAI
Title
Booking for Appointments and Events Calendar – Amelia (Premium) 8.0 - 9.6.2 - Unauthenticated Privilege Escalation to Administrator via 'externalId'
Summary
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.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 12:56 UTC
CWE
  • CWE-269 - Improper Privilege Management
Assigner
Wordfence CNA under the mitre root
CNA scorecard C 65/100 over 2251 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
melograno Booking for Appointments and Events Calendar – Amelia Affected: 8.0 , ≤ 9.6.2 (semver)
guessed Create a notification for this product.
Credits
d.v4n_s3c
Show details on NVD website
To clipboard 

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