CVE-2018-0513 in Simple Booking C
Summary
by MITRE
Cross-site scripting vulnerability in MTS Simple Booking C, MTS Simple Booking Business version 1.28.0 and earlier allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 01/02/2020
The vulnerability identified as CVE-2018-0513 represents a critical cross-site scripting flaw within the MTS Simple Booking C and MTS Simple Booking Business software versions up to 1.28.0. This weakness enables remote attackers to execute malicious web scripts or HTML code within the context of affected user sessions, potentially leading to unauthorized data access, session hijacking, or further exploitation of the compromised system. The vulnerability stems from insufficient input validation and output encoding mechanisms within the application's data handling processes, creating an attack surface where malicious payloads can be injected through unspecified vectors.
The technical implementation of this XSS vulnerability occurs when the application fails to properly sanitize user-supplied input before incorporating it into dynamically generated web pages. This failure allows attackers to craft malicious input that gets rendered as executable code within the browser context of legitimate users. The unspecified vectors suggest that the vulnerability may be present across multiple input points within the application, including form fields, URL parameters, or API endpoints, making the attack surface more expansive and difficult to predict. The flaw directly aligns with CWE-79 which categorizes cross-site scripting as a code injection vulnerability that occurs when untrusted data is processed and returned to users without proper sanitization.
From an operational perspective, this vulnerability poses significant risks to organizations using the affected booking software, particularly those handling sensitive customer data or financial transactions. Attackers could exploit this weakness to steal user session cookies, redirect victims to malicious websites, or inject phishing content that could compromise user credentials and personal information. The remote nature of the attack means that threat actors do not require physical access to the system or network, making the vulnerability particularly dangerous for web-based applications. This weakness falls under the ATT&CK technique T1059.007 for script injection, which is commonly used in web application attacks to establish persistent access or exfiltrate data.
The impact of exploitation extends beyond immediate data compromise, as successful XSS attacks can lead to privilege escalation, data breaches, and reputational damage for organizations relying on the affected software. Users who interact with the compromised application may unknowingly execute malicious code that could result in full account takeover or unauthorized access to sensitive business information. Organizations should consider implementing comprehensive input validation controls, output encoding mechanisms, and regular security assessments to prevent such vulnerabilities from being exploited. The vulnerability demonstrates the critical importance of secure coding practices and the need for continuous security testing throughout the software development lifecycle to prevent injection flaws that could compromise user safety and organizational security.