The Salon booking system plugin for WordPress is vulnerable to unauthorized access and modification of data due to a missing capability check on several functions hooked into admininit in all versions up to, and including, 9.9. This makes it possible for authenticated attackers with subscriber access or higher to modify plugin settings and view discount codes intended for other users.

The Salon booking system plugin for WordPress is vulnerable to arbitrary file deletion in all versions up to, and including, 9.8. This is due to the plugin not properly validating the path of an uploaded file prior to deleting it. This makes it possible for unauthenticated attackers to delete arbitrary files, including the wp-config.php file, which can make site takeover and remote code execution possible. This was partially patched in 9.9, and sufficiently patched in 10.0. CVE-2024-37231 appears to be a duplicate of this issue.

The Salon Booking System plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 8.4.6. This is due to missing or incorrect nonce validation on the 'savecustomer' function. This makes it possible for unauthenticated attackers to change the admin role to customer or change the user meta to arbitrary values via a forged request, granted they can trick a site administrator into performing an action such as clicking on a link.

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.

Missing Authorization vulnerability in Dimitri Grassi Salon booking system salon-booking-system allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Salon booking system: from n/a through <= 10.30.23.

Incorrect Privilege Assignment vulnerability in Dimitri Grassi Salon booking system salon-booking-system allows Privilege Escalation.This issue affects Salon booking system: from n/a through < 10.15.

Authorization Bypass Through User-Controlled Key vulnerability in Dimitri Grassi Salon booking system salon-booking-system.This issue affects Salon booking system: from n/a through <= 10.9.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Salon Booking System Salon booking system allows SQL Injection.This issue affects Salon booking system: from n/a through 10.7.

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 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.

The Salon booking system WordPress plugin before 6.3.1 does not properly sanitise and escape the First Name field when booking an appointment, allowing low privilege users such as subscriber to set JavaScript in them, leading to a Stored Cross-Site Scripting (XSS) vulnerability. The Payload will then be triggered when an admin visits the "Calendar" page and the malicious script is executed in the admin context.