CVE-2017-17938 in Single Theater Booking
Summary
by MITRE
PHP Scripts Mall Single Theater Booking has XSS via the admin/viewtheatre.php theatreid parameter.
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Analysis
by VulDB Data Team • 03/14/2020
The vulnerability identified as CVE-2017-17938 represents a cross-site scripting flaw within the PHP Scripts Mall Single Theater Booking application, specifically affecting the admin/viewtheatre.php component. This issue arises from insufficient input validation and output encoding mechanisms that fail to properly sanitize user-supplied data before incorporating it into dynamic web page content. The vulnerability is particularly concerning as it targets the administrative interface of the theater booking system, potentially allowing attackers to execute malicious scripts in the context of authenticated administrator sessions.
The technical exploitation of this vulnerability occurs through manipulation of the theatreid parameter within the admin/viewtheatre.php URL endpoint. When an attacker crafts a malicious URL containing crafted script payloads within the theatreid parameter, the application fails to adequately escape or validate this input before rendering it in the web response. This lack of proper input sanitization creates an environment where malicious JavaScript code can be injected and subsequently executed by the browser of any user who accesses the affected page, particularly administrators who maintain elevated privileges within the system.
The operational impact of this vulnerability extends beyond simple script execution, as it provides attackers with potential access to sensitive administrative functions and data within the theater booking system. An attacker who successfully exploits this XSS vulnerability could potentially steal administrator session cookies, redirect users to malicious sites, modify administrative content, or even escalate privileges within the application. The vulnerability's location within the administrative view component means that successful exploitation could lead to complete compromise of the booking system's management interface, potentially allowing unauthorized modifications to theater configurations, showtimes, or booking records.
This vulnerability aligns with CWE-79, which specifically addresses cross-site scripting flaws in web applications, and demonstrates characteristics consistent with the attack pattern described in the MITRE ATT&CK framework under the technique of web application attacks. The flaw represents a classic case of insufficient output escaping in web applications, where user-controllable input flows directly into HTML output without proper sanitization. Organizations utilizing this theater booking system should implement immediate mitigations including input validation, output encoding, and proper parameter sanitization within the admin/viewtheatre.php component. Additionally, implementing a Content Security Policy (CSP) header can provide an additional layer of protection against XSS attacks by restricting script execution within the application environment. The vulnerability underscores the importance of implementing robust input validation and output encoding practices across all web application components, particularly those handling administrative functions and user data.