CVE-2025-63533 is a cross-site scripting (XSS) vulnerability identified in the Blood Bank Management System 1.0, affecting the updateprofile.php and rprofile.php components. The root cause is the failure to properly sanitize or encode user-supplied input parameters including rname, remail, rpassword, rphone, and rcity before rendering them in HTTP responses. This allows an attacker to inject malicious JavaScript payloads that execute in the victim’s browser when these pages are viewed. The vulnerability is classified under CWE-79, which pertains to improper neutralization of input during web page generation. The CVSS v3.1 base score is 8.5, indicating high severity, with an attack vector of network (AV:N), low attack complexity (AC:L), no user interaction (UI:N), and requiring low privileges (PR:L). The scope is changed (S:C), meaning the vulnerability affects resources beyond the vulnerable component. The impact on confidentiality is high due to potential theft of sensitive data or session tokens, while integrity impact is low. Availability is not affected. No patches or known exploits are currently reported, but the vulnerability poses a significant risk to healthcare data confidentiality and user trust. The Blood Bank Management System is likely used in healthcare environments, making this vulnerability critical in contexts where patient data privacy is paramount.

For European organizations, especially those in the healthcare sector, this vulnerability could lead to unauthorized disclosure of sensitive patient information, including personal identifiers and health data, through session hijacking or data theft via injected scripts. Exploitation could undermine trust in digital health services and lead to regulatory penalties under GDPR due to data breaches. The XSS flaw could also be leveraged to conduct further attacks such as phishing or malware distribution within healthcare networks. Given the critical nature of blood bank systems in patient care and emergency response, disruption or compromise could have serious operational and reputational consequences. The vulnerability’s low attack complexity and lack of required user interaction increase the likelihood of exploitation if the system remains unpatched. European healthcare providers using this software must consider the potential for widespread impact on patient data confidentiality and system integrity.

1. Implement strict input validation on all user-supplied data fields (rname, remail, rpassword, rphone, rcity) to reject or sanitize malicious content before processing. 2. Apply proper output encoding/escaping (e.g., HTML entity encoding) when rendering user inputs in web pages to prevent script execution. 3. Conduct a comprehensive security review of the Blood Bank Management System’s web components to identify and remediate similar XSS or injection flaws. 4. Deploy Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in browsers accessing the system. 5. Monitor web application logs for suspicious input patterns indicative of attempted XSS exploitation. 6. Educate system administrators and developers on secure coding practices and the importance of sanitization and encoding. 7. If possible, isolate the Blood Bank Management System within a segmented network zone to limit exposure. 8. Engage with the software vendor or development team to obtain or develop patches addressing the vulnerability. 9. Regularly update and patch all components of the healthcare IT infrastructure to reduce attack surface.