CVE-2023-51317 in Restaurant Booking System
Summary
by MITRE • 02/20/2025
PHPJabbers Restaurant Booking System v3.0 is vulnerable to Multiple HTML Injection in the "name, plugin_sms_api_key, plugin_sms_country_code, title, plugin_sms_api_key, title" parameters.
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Analysis
by VulDB Data Team • 03/07/2026
The PHPJabbers Restaurant Booking System version 3.0 contains multiple html injection vulnerabilities that affect several critical parameters including name, plugin_sms_api_key, plugin_sms_country_code, and title fields. This vulnerability allows attackers to inject malicious html content into the application's user interface, potentially leading to cross-site scripting attacks and unauthorized access to sensitive information. The flaw exists in the input validation and output encoding mechanisms of the booking system, where user-supplied data is not properly sanitized before being rendered in web pages. This weakness enables attackers to manipulate the application's behavior and potentially execute arbitrary code within the context of a victim's browser session.
The technical implementation of this vulnerability stems from insufficient validation of user inputs in the booking system's backend processing functions. When users enter data into the specified parameters, the application fails to properly escape or encode html special characters before storing or displaying the information. This creates an environment where malicious actors can inject script tags, iframe elements, or other html constructs that execute unintended actions. The vulnerability is particularly concerning because it affects multiple parameters within the system, increasing the attack surface and potential impact. According to CWE classification, this represents a CWE-79: Cross-Site Scripting vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users.
The operational impact of this vulnerability extends beyond simple html injection, as it can enable more sophisticated attacks including session hijacking, credential theft, and unauthorized administrative access. Attackers could exploit this weakness to inject malicious scripts that steal cookies, redirect users to phishing sites, or modify the booking system's functionality. The vulnerability affects the system's integrity and availability, as malicious actors could potentially disrupt the booking process or gain unauthorized access to customer data. This weakness directly violates the principle of least privilege and can lead to data breaches, financial losses, and reputational damage for restaurant businesses relying on the system. The attack surface is particularly broad since the vulnerable parameters are likely used in various contexts throughout the application, making it easier for attackers to find successful exploitation vectors.
Mitigation strategies should focus on implementing comprehensive input validation and output encoding mechanisms across all user-facing parameters. The system requires immediate patching to ensure that all user inputs are properly sanitized before being processed or displayed. Security measures should include html escaping for all dynamic content, implementation of content security policies, and regular security testing of input validation routines. Organizations should also consider implementing web application firewalls to detect and block suspicious input patterns. The remediation process must address the root cause by ensuring that all parameters including name, plugin_sms_api_key, plugin_sms_country_code, and title are validated against expected formats and properly encoded before rendering. Additionally, regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other components of the application. This vulnerability demonstrates the critical importance of following secure coding practices and adhering to the principle of defense in depth as outlined in the MITRE ATT&CK framework for application security.