What’s Vulnerable › Vulnerabilities

CVE-2026-109232: Salon Booking System <= 10.31.9 - Unauthenticated Stored Cross-Site Scripting via Custom Checkout Field (Html/File Type) via Public Booking AJAX

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-16 · updated 2026-10-16
• Weakness: CWE-79

Description

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.

Affected products

• wordpresschef Salon Booking System – Appointment Booking for Salons, Barbershops & Spas: through 10.31.9

References

• https://plugins.trac.wordpress.org/browser/salon-booking-system/tags/10.31.9/src/SLN/Action/Init.php#L645
• https://plugins.trac.wordpress.org/browser/salon-booking-system/tags/10.31.9/src/SLN/Form.php#L321
• https://plugins.trac.wordpress.org/browser/salon-booking-system/tags/10.31.9/src/SLN/Shortcode/Salon/AbstractUserStep.php#L46
• https://plugins.trac.wordpress.org/browser/salon-booking-system/tags/10.31.9/src/SLN/Shortcode/Salon/DetailsStep.php#L179
• https://plugins.trac.wordpress.org/browser/salon-booking-system/tags/10.31.9/views/admin/_customer.php#L110
• https://plugins.trac.wordpress.org/browser/salon-booking-system/tags/10.31.9/views/admin/_customer.php#L116
• https://plugins.trac.wordpress.org/changeset?reponame=&old=3742306%40salon-booking-system&new=3742306%40salon-booking-system
• https://www.wordfence.com/threat-intel/vulnerabilities/id/7bc97a43-6d81-401d-8090-825c6127c4c8?source=cve

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