CVE-2025-14200 identifies a cross-site scripting (XSS) vulnerability in the alokjaiswal Hotel-Management-services-using-MYSQL-and-php software, specifically within an unspecified function in the /usersub.php file related to the Request Pending Page. This vulnerability arises from improper sanitization or encoding of user-supplied input, allowing attackers to inject malicious JavaScript code that executes in the context of other users' browsers. The attack vector is remote and does not require authentication, but user interaction is necessary to trigger the malicious payload. The product follows a rolling release model, meaning continuous updates are delivered without traditional versioning, which complicates patch management and vulnerability tracking. The vendor has been unresponsive to disclosure efforts, and no patches or fixes have been released at the time of publication. The CVSS 4.0 score of 5.1 reflects a medium severity, considering the ease of exploitation (low complexity), no privileges required, but requiring user interaction and limited impact on confidentiality and integrity. The vulnerability could be exploited to steal session cookies, perform actions on behalf of authenticated users, or redirect users to malicious sites, potentially leading to broader compromise of user accounts or data. The lack of vendor response and patch availability increases the urgency for organizations to implement compensating controls.

The primary impact of this XSS vulnerability is on the confidentiality and integrity of user sessions and data within the affected hotel management system. Attackers can exploit this flaw to execute arbitrary scripts in users' browsers, potentially stealing session tokens, credentials, or other sensitive information. This can lead to unauthorized access to user accounts, manipulation of booking or customer data, and disruption of normal operations. For organizations, this could result in reputational damage, regulatory penalties related to data protection, and financial losses due to fraud or operational downtime. Since the vulnerability requires user interaction, phishing or social engineering campaigns could be used to increase exploitation success. The rolling release nature of the product and lack of vendor response complicate timely patching, increasing exposure duration. Hospitality organizations relying on this software, especially those handling large volumes of customer data, are at risk of targeted attacks aiming to compromise guest information or disrupt services.

Given the absence of an official patch, organizations should implement immediate compensating controls. First, apply strict input validation and output encoding on all user-supplied data, particularly on the Request Pending Page and any other user-facing components, to neutralize malicious scripts. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in browsers. Educate users about the risks of clicking suspicious links or interacting with untrusted content related to the hotel management system. Monitor web application logs for unusual input patterns or repeated attempts to inject scripts. Consider deploying Web Application Firewalls (WAFs) with custom rules to detect and block XSS payloads targeting the affected endpoints. If feasible, isolate the vulnerable component or restrict access to trusted users until a vendor patch is available. Engage with the vendor persistently for updates or consider migrating to alternative software with better security support. Regularly review and update security policies to address emerging threats linked to this vulnerability.