Quick answers
- Is CVE-2026-87894 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-87894 being exploited in the wild.
- How severe is CVE-2026-87894?
- Medium severity, with a CVSS score of 5.3, published 12 September 2026.
- Which products and versions are affected?
- Rox Appointment Booking 1.0.9 to 1.2.2.
- Is there a fix for CVE-2026-87894?
- A patch was published on 2026-09-12: Fixed in version 1.2.3 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- Am I affected by CVE-2026-87894?
- Check whether anything you run is named in the advisory. 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 plugin fails to implement authorization checks on the booking-confirmation REST API endpoint (/wp-json/rox-apartment-booking/v1/public/booking/confirmation/{id}), with a permission callback that always returns true. Bookings are identified by sequential auto-incrementing numeric IDs, enabling trivial enumeration. An unauthenticated attacker with network access to the WordPress site can enumerate the entire customer database by iterating through booking IDs, retrieving full PII including name, email, phone, service details, and payment status. The vulnerability is classified as Insecure Direct Object Reference (IDOR) and requires no authentication, user interaction, or special preconditions beyond at least one booking existing in the system. Patches are available in version 1.2.3 and later.
Affected products
- Rox Appointment Booking 1.0.9 to 1.2.2
Timeline
- 2026-09-10: disclosed
- 2026-09-12: patched: Fixed in version 1.2.3