The Salon Booking System, Appointment Scheduling for Salons, Spas & Small Businesses WordPress plugin before 1.9.4 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfilteredhtml capability is disallowed (for example in multisite setup).

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Salon Booking System Salon booking system allows File Manipulation.This issue affects Salon booking system: from n/a through 9.9.

The Salon booking system plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the SLNActionAjaxImportAssistants function along with missing authorization checks in all versions up to, and including, 10.2. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

Improper Privilege Management vulnerability in Salon Booking System Salon booking system allows Privilege Escalation.This issue affects Salon booking system: from n/a through 8.6.

The Salon booking system WordPress plugin through 9.6.5 does not sanitise and escape some of its settings, which could allow high privilege users such as admin (or editor depending on Salon booking system WordPress plugin through 9.6.5 configuration) to perform Stored Cross-Site Scripting attacks even when the unfilteredhtml capability is disallowed (for example in multisite setup)

Unrestricted Upload of File with Dangerous Type vulnerability in Salon Booking System Salon booking system.This issue affects Salon booking system: from n/a through 9.5.