WordPress security changelog
MEDIUM CVE-2026-17020 Deferred

Salon Booking System REST IDOR exposes customer details

Salon Booking System – Free Version through 10.30.33 exposes a REST API endpoint that does not verify booking ownership. Any authenticated account with basic read access, including a Subscriber or self-registered customer, can enumerate booking identifiers and read another customer's name, email address, phone number, address and private notes.

CVE / CNA score 4.3 CVSS 3.1 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
NVD score Pending NVD has not published its own CVSS assessment.
Component
Salon Booking System
Plugin slug
salon-booking-system
Affected
<= 10.31.0
Safe version
> 10.30.33
Published
Aug 10, 2026
Weakness
CWE-639 — Authorization Bypass Through User-Controlled Key

This CVE was published Aug 10, 2026 and is one of 36 known issues for this plugin.

Update, patch or deactivate.

No fixed release is identified by the authoritative advisory. Update when the vendor publishes a confirmed fixed version. Until then, restrict account registration and REST access or deactivate the plugin according to site risk, and review low-privilege requests for booking-ID enumeration.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

The Salon Booking System WordPress plugin through 10.31.0 does not verify that a requested booking belongs to the caller on one of its REST API endpoints, requiring only a basic read capability, allowing any authenticated user (including a Subscriber or self-registered customer account) to disclose any customer's booking personal data such as name, email, phone number, address and private notes by enumerating booking identifiers.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Primary and upstream sources