CVE-2026-94668 in Salon Booking System Plugin
Summary
by MITRE • 10/09/2026
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Dimitri Grassi Salon booking system salon-booking-system allows Reflected XSS.This issue affects Salon booking system: from n/a through 10.31.5.
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Analysis
by VulDB Data Team • 10/09/2026
The identified security flaw represents a classic instance of improper neutralization of input during web page generation, commonly known as Cross-Site Scripting or XSS. Specifically, this vulnerability manifests as a Reflected XSS within the Salon booking system developed by Dimitri Grassi. This type of attack occurs when an application receives data in an HTTP request and includes that unsafe data into its output without first validating or encoding it to ensure it cannot be interpreted as executable code by the client's web browser. In this specific context, the vulnerability exists across versions from n/a through 10.31.5, indicating a widespread exposure for users operating within this version range who rely on the platform for salon management and booking operations.
From a technical perspective, reflected XSS vulnerabilities typically arise when user-supplied input is echoed back to the user in an HTTP response without proper sanitization. An attacker can craft a malicious URL containing script payloads embedded within query parameters or form fields. When a victim clicks this link or submits the crafted data through the application interface, the server processes the request and immediately reflects the unvalidated payload back into the HTML page served by the web server. Because the browser interprets the content as part of the webpage rather than plain text, it executes the embedded JavaScript code in the context of the victim's session. This mechanism allows the attacker to bypass same-origin policy restrictions, effectively running arbitrary scripts on behalf of the authenticated user within the domain of the salon booking system.
The operational impact of this vulnerability is significant for both end-users and administrators utilizing the Salon booking system. Successful exploitation enables an attacker to execute malicious JavaScript in the context of the victim's browser session. This capability allows for several detrimental outcomes, including the theft of sensitive information such as session cookies, authentication tokens, or personal data stored locally by the application. Attackers can also perform actions on behalf of the user without their knowledge or consent, such as changing account settings, making unauthorized bookings, or modifying salon schedules and client records. Furthermore, this vulnerability can be leveraged to redirect users to phishing sites designed to steal credentials from other employees or clients interacting with the system, thereby expanding the scope of potential compromise beyond a single session.
This flaw aligns directly with CWE-79, which categorizes improper neutralization of input during web page generation as Cross-site Scripting. It also maps closely to MITRE ATT&CK technique T1059.007, specifically JavaScript execution within the browser environment. The reflected nature of this XSS indicates that it is often used in targeted attacks where social engineering plays a key role, such as sending malicious links via email or instant messaging to specific staff members who have access to sensitive administrative functions. Unlike stored XSS, which persists on the server and affects all visitors, reflected XSS requires active user interaction with a crafted payload, but its impact remains severe due to the potential for session hijacking and data exfiltration in web-based applications that handle personal identifiable information.
To mitigate this vulnerability, developers must implement robust input validation and output encoding strategies across the entire application stack. All user-supplied inputs should be validated against strict allowlists of expected characters and formats before processing. More critically, all dynamic content rendered into HTML responses must be properly encoded based on the context in which it is displayed, such as HTML entity encoding for body text or attribute value escaping to prevent script injection. Utilizing modern web frameworks that automatically handle output encoding can significantly reduce the risk of such oversights. Additionally, implementing Content Security Policy headers can provide a layer of defense by restricting the sources from which scripts are allowed to execute, thereby mitigating the impact even if an XSS vector is successfully exploited. Upgrading to version 10.31.6 or later, where this issue has presumably been addressed, is the most effective immediate remediation step for organizations currently running affected versions of the Salon booking system.