Booking Package <= 1.7.16 — Authenticated (Editor+) Privilege Escalation via Account Takeover to updateUser AJAX Action

Am I affected?

• Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Booking Package.
• No admin access? Run a passive check of your site. It reads public files only.

What to do

1. Update to version 1.7.17, or a newer patched version
2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
3. Watch Booking Package to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Md. Moniruzzaman Prodhan (NomanProdhan).

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.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

• Advisorywordfence.com

Related CVEs

Timeline

1. Jun 5, 2026

   CVE published

   Severity high, CVSS 7.2

2. Nov 13, 2026

   Record last updated