---
id: CVE-2026-109232
title: >-
  The Salon Booking System – Appointment Booking for Salons, Barbershops & Spas
  plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the
  'sln[<checkout-field-key>]' parameter in all versions up to, and including,
  10.31.9 d…
summary: >-
  The Salon Booking System – Appointment Booking for Salons, Barbershops & Spas
  plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the
  'sln[<checkout-field-key>]' parameter in all versions up to, and including,
  10.31.9 d…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: wordpresschef
product: 'Salon Booking System – Appointment Booking for Salons, Barbershops & Spas'
affected:
  - >-
    salon_booking_system_appointment_booking_for_salons_barbershops_spas <=
    10.31.9
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T15:17:07.030'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109232'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/salon-booking-system/tags/10.31.9/src/SLN/Action/Init.php#L645
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/salon-booking-system/tags/10.31.9/src/SLN/Form.php#L321
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/salon-booking-system/tags/10.31.9/src/SLN/Shortcode/Salon/AbstractUserStep.php#L46
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/salon-booking-system/tags/10.31.9/src/SLN/Shortcode/Salon/DetailsStep.php#L179
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/salon-booking-system/tags/10.31.9/views/admin/_customer.php#L110
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/salon-booking-system/tags/10.31.9/views/admin/_customer.php#L116
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3742306%40salon-booking-system&new=3742306%40salon-booking-system
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/7bc97a43-6d81-401d-8090-825c6127c4c8?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
epss: 0.00247
epssPercentile: 0.15879
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-16T14:34:26.195386Z'
ingestedAt: '2026-10-16T06:00:00.392Z'
---

## Overview

The Salon Booking System – Appointment Booking for Salons, Barbershops & Spas plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'sln[<checkout-field-key>]' parameter in all versions up to, and including, 10.31.9 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires that the site administrator has configured at least one custom checkout field of type Html or File, which is a standard documented plugin feature.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.