CVE-2025-2869 in Clinic Queuing System
Summary
by MITRE • 03/28/2025
Reflected Cross-Site Scripting (XSS) vulnerability in version 1.0 of the Clinic Queuing System. This vulnerability could allow an attacker to execute JavaScript code in the victim's browser by sending a malicious URL through the id parameter in /manage_user.php.
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Analysis
by VulDB Data Team • 10/16/2025
The CVE-2025-2869 vulnerability represents a critical reflected cross-site scripting flaw within the Clinic Queuing System version 1.0, specifically manifesting in the /manage_user.php endpoint. This vulnerability stems from inadequate input validation and output encoding practices within the application's user management module, creating a dangerous attack vector that can be exploited by malicious actors to compromise end-user browsers. The flaw occurs when the application fails to properly sanitize or escape user-supplied input passed through the id parameter, allowing attackers to inject malicious JavaScript payloads that execute in the context of legitimate users' browsers.
The technical implementation of this vulnerability aligns with CWE-79, which specifically addresses cross-site scripting weaknesses in web applications. The attack mechanism operates through the exploitation of reflected XSS patterns where malicious input is immediately reflected back to the user without proper sanitization. When a victim clicks on a crafted URL containing malicious JavaScript code within the id parameter, the web application processes this input and reflects it back in the page response, executing the injected script within the victim's browser context. This enables attackers to perform unauthorized actions such as session hijacking, credential theft, or redirection to malicious sites.
The operational impact of this vulnerability extends beyond simple script execution, creating significant risks for healthcare data integrity and user privacy within the clinic management environment. Attackers could leverage this vulnerability to steal user sessions, access sensitive patient information, or manipulate user permissions within the queuing system. The reflected nature of the vulnerability means that exploitation requires user interaction with a malicious link, typically through social engineering tactics such as phishing emails or compromised communication channels. This makes the attack surface particularly concerning for healthcare environments where patient confidentiality and data protection are paramount.
Mitigation strategies for CVE-2025-2869 should prioritize immediate input validation and output encoding measures to prevent malicious code injection. The recommended approach involves implementing strict parameter validation for the id field in /manage_user.php, utilizing proper HTML escaping mechanisms before rendering any user-supplied data, and deploying Content Security Policy (CSP) headers to limit script execution. Additionally, the application should employ proper input sanitization techniques including the use of allowlists for acceptable input values and automatic escaping of special characters. Security practitioners should also consider implementing web application firewalls and monitoring for suspicious parameter patterns to detect potential exploitation attempts. The vulnerability classification under ATT&CK technique T1566 highlights the social engineering aspects of exploitation, emphasizing the need for comprehensive user awareness training alongside technical controls to prevent successful attacks.