CVE-2026-9851 (GCVE-0-2026-9851)
Vulnerability from cvelistv5
Published
2026-06-06 04:28
Modified
2026-06-06 11:41
Severity ?
7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Summary
The Booking Package plugin for WordPress is vulnerable to Privilege Escalation via Account Takeover in versions up to, and including, 1.7.16. This is due to a missing capability check on the 'updateUser' branch of the package_app_action AJAX endpoint, where the handler only validates a nonce and the dispatcher invokes Schedule::updateUser() with the $administrator argument hard-coded to 1, bypassing the only owner-restriction check inside that function and allowing the target user to be determined solely by attacker-supplied input passed directly to wp_update_user(). This makes it possible for authenticated attackers, with Editor-level access and above, to change the email address and password of any account, including Administrator accounts, resulting in a full site takeover.
References
Impacted products
Vendor Product Version
masaakitanaka Booking Package Version: 0   ≤ 1.7.16
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