CVE-2025-7153 is a cross-site scripting (XSS) vulnerability identified in version 1.0 of the CodeAstro Simple Hospital Management System, specifically within the /doctor.html component's POST parameter handler. The vulnerability arises due to improper sanitization or validation of user-supplied input fields such as First Name, Last Name, and Address. An attacker can remotely exploit this flaw by injecting malicious scripts into these parameters, which are then executed in the context of the victim's browser when the affected page is rendered. This type of vulnerability can lead to session hijacking, defacement, or redirection to malicious sites, potentially compromising user data and trust. The vulnerability has been publicly disclosed, though no known exploits are currently observed in the wild. The CVSS v4.0 score is 5.1 (medium severity), reflecting the network attack vector, low attack complexity, no privileges required but user interaction needed, and limited impact on integrity and availability with no impact on confidentiality. The vulnerability does not require authentication but does require user interaction, such as a victim clicking a crafted link or submitting a form containing the malicious payload. The lack of a patch link suggests that a fix may not yet be available, emphasizing the need for immediate mitigation steps by affected organizations.

For European healthcare organizations using CodeAstro Simple Hospital Management System 1.0, this vulnerability poses a risk to the integrity and trustworthiness of their web applications. Exploitation could allow attackers to execute arbitrary scripts in the browsers of hospital staff or patients, potentially leading to theft of session tokens, unauthorized actions on behalf of users, or delivery of malware. This can disrupt hospital operations, compromise sensitive patient data indirectly via session hijacking, and damage organizational reputation. Given the critical nature of healthcare services and strict data protection regulations such as GDPR in Europe, even a medium-severity XSS vulnerability can have significant compliance and operational consequences. Additionally, the healthcare sector is a frequent target for cyberattacks, increasing the likelihood that adversaries may attempt to exploit such vulnerabilities. The remote attack vector and lack of required privileges make it easier for attackers to attempt exploitation, especially in environments where user awareness or input validation controls are insufficient.

1. Immediate implementation of input validation and output encoding: Ensure that all user-supplied input fields (First Name, Last Name, Address) are properly sanitized and encoded before rendering in the HTML context to prevent script injection. 2. Deploy Web Application Firewalls (WAFs) with rules targeting XSS payloads to provide a temporary protective layer until a patch is available. 3. Conduct user awareness training for hospital staff to recognize suspicious links or inputs that could trigger XSS attacks. 4. Monitor web server and application logs for unusual requests or error patterns indicative of attempted exploitation. 5. Engage with CodeAstro or the vendor community to obtain or request a security patch or updated version addressing this vulnerability. 6. If possible, restrict access to the /doctor.html page to trusted internal networks or authenticated users to reduce exposure. 7. Implement Content Security Policy (CSP) headers to limit the execution of unauthorized scripts in browsers accessing the hospital management system. 8. Regularly review and update security controls and conduct penetration testing focused on XSS vulnerabilities to proactively identify and remediate similar issues.