CVE-2023-43376 in Hoteldruid
Summary
by MITRE • 09/20/2023
A cross-site scripting (XSS) vulnerability in /hoteldruid/clienti.php of Hoteldruid v3.0.5 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the nometipotariffa1 parameter.
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Analysis
by VulDB Data Team • 02/06/2026
The vulnerability identified as CVE-2023-43376 represents a critical cross-site scripting flaw within the Hoteldruid hotel management system version 3.0.5. This particular vulnerability exists in the clienti.php script which handles client management functionalities within the application. The flaw manifests when the application fails to properly sanitize user input submitted through the nometipotariffa1 parameter, creating an avenue for malicious actors to inject arbitrary HTML and JavaScript code into the web application's response. The vulnerability classification aligns with CWE-79 which specifically addresses Cross-Site Scripting vulnerabilities in web applications, where inadequate input validation and output encoding creates opportunities for attackers to execute malicious scripts in the context of the victim's browser.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious payload containing HTML or JavaScript code and submits it through the nometipotariffa1 parameter in the clienti.php script. The application processes this input without proper sanitization or encoding, allowing the injected code to be rendered in subsequent web pages viewed by other users. This creates a persistent XSS vector where the malicious script executes within the victim's browser context, potentially stealing session cookies, redirecting users to malicious sites, or performing unauthorized actions on behalf of the victim. The vulnerability demonstrates a failure in input validation practices and highlights the importance of proper output encoding as recommended by the OWASP Top Ten and the CWE guidelines for preventing XSS attacks.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable sophisticated attack chains within the Hoteldruid application environment. An attacker could potentially leverage this vulnerability to escalate privileges, access sensitive client data, or manipulate the hotel management system's functionality. The attack surface is particularly concerning given that the vulnerable parameter is part of the client management interface, suggesting that the compromise could affect customer records and potentially lead to broader system infiltration. This vulnerability also aligns with ATT&CK technique T1566 which covers social engineering tactics, as the XSS could be used to craft phishing attacks or manipulate user interactions within the application. The persistent nature of the vulnerability means that once exploited, the malicious script could continue executing against multiple users until the input is properly sanitized or the application is patched.
Mitigation strategies for CVE-2023-43376 should prioritize immediate input validation and output encoding implementations within the clienti.php script. The most effective approach involves implementing strict sanitization of the nometipotariffa1 parameter through proper HTML entity encoding before rendering any user-supplied content in the application's output. Organizations should also implement Content Security Policy headers to limit script execution capabilities and prevent unauthorized code injection. Additionally, the application should employ proper parameter validation to reject malformed or suspicious input patterns. The vulnerability underscores the necessity of regular security assessments and input validation reviews as recommended by ISO/IEC 27001 standards for information security management. The patching process should include comprehensive testing to ensure that the sanitization measures do not inadvertently break legitimate functionality while effectively neutralizing the XSS vector. Regular security monitoring and log analysis should also be implemented to detect potential exploitation attempts of this vulnerability.