Quick answers
- Is CVE-2026-8684 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-8684 being exploited in the wild.
- How severe is CVE-2026-8684?
- Medium severity, with a CVSS score of 5.3, published 22 May 2026.
- Which products and versions are affected?
- MotoPress Hotel Booking Up to and including 6.0.1.
- Is there a fix for CVE-2026-8684?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-8684 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-8684?
- Check whether you run MotoPress Hotel Booking at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The MotoPress Hotel Booking plugin for WordPress (up to version 6.0.1) fails to perform adequate authorization checks in its AJAX API handler for updating booking notes. Specifically, the 'update-booking-notes' action does not verify if the requester has administrative privileges. While the action is protected by a nonce, this nonce is leaked to all visitors via the 'MPHB._data.nonces' object in the HTML source of public pages. Consequently, an unauthenticated attacker can obtain a valid nonce and send a crafted request with an arbitrary booking ID to overwrite or delete the '_mphb_booking_internal_notes' meta field.
Affected products
- MotoPress Hotel Booking Up to and including 6.0.1
Timeline
- 2026-05-22: disclosed
- 2026-05-22: advisory
References
- https://plugins.trac.wordpress.org/browser/motopress-hotel-booking-lite/tags/5.4.1/includes/ajax-api/ajax-actions/abstract-ajax-api-action.php
- https://plugins.trac.wordpress.org/browser/motopress-hotel-booking-lite/tags/5.4.1/includes/ajax-api/ajax-actions/update-booking-notes.php
- https://plugins.trac.wordpress.org/browser/motopress-hotel-booking-lite/tags/5.4.1/includes/ajax-api/ajax-api-handler.php
- https://plugins.trac.wordpress.org/browser/motopress-hotel-booking-lite/tags/6.0.1/includes/ajax-api/ajax-actions/abstract-ajax-api-action.php
- https://plugins.trac.wordpress.org/browser/motopress-hotel-booking-lite/tags/6.0.1/includes/ajax-api/ajax-actions/update-booking-notes.php
- https://plugins.trac.wordpress.org/browser/motopress-hotel-booking-lite/tags/6.0.1/includes/ajax-api/ajax-api-handler.php
- https://plugins.trac.wordpress.org/changeset/3537354/motopress-hotel-booking-lite/trunk/includes/ajax-api/ajax-actions/update-booking-notes.php