A critical certificate validation vulnerability in Akınsoft QR Menü allows unauthenticated attackers to perform HTTP Response Splitting, potentially leading to information disclosure or session manipulation.

The application fails to properly validate certificates, leading to a host mismatch condition. This flaw allows unauthenticated remote attackers to inject arbitrary headers or content into HTTP responses.

Successful exploitation of this vulnerability permits HTTP Response Splitting, which can be leveraged to conduct cross-site scripting (XSS), cache poisoning, or session fixation attacks. Given the CVSS score of 7.3, this represents a high-severity risk to the integrity and confidentiality of user interactions with the QR Menü platform. Such attacks may lead to unauthorized access to sensitive customer data or the compromise of user sessions.

Immediate Action: Update Akınsoft QR Menü to version 1.05.12 or later to apply the necessary certificate validation patches.

Proactive Monitoring: Monitor server logs for unusual HTTP header patterns or repetitive requests that deviate from standard user behavior.

Compensating Controls: Deploy a Web Application Firewall (WAF) configured to inspect and block malformed HTTP responses or requests containing carriage return and line feed (CRLF) injection sequences.

Public Exploit Available: No

The vulnerability in Akınsoft QR Menü presents a significant risk due to its potential for unauthenticated exploitation. Organizations using the affected versions should prioritize the update to version 1.05.12 immediately to eliminate the underlying flaw in certificate handling. Consistent patch management and the deployment of network-layer protections are essential to maintaining the security posture of the application.