How to fix - Validation Failure

Validation failure is a type of web application vulnerability that occurs when an application does not properly validate user input, allowing an attacker to inject malicious data into the application. This can include injecting SQL, JavaScript, or other types of code into the application, which can be used to steal data, take over user accounts, or perform other types of malicious actions. To fix validation failure, web applications should implement robust and secure input validation controls and best practices. This can include:

• Properly sanitizing user input to remove any malicious code

• Using a whitelist of accepted input to only allow specific characters or strings

• Implementing input validation on both the client-side (e.g. JavaScript) and server-side of the application

• Logging and auditing user input to detect and investigate suspicious activity

• Regularly reviewing and testing input validation controls to ensure they are working as intended

It is also important to use security best practices and perform regular security assessments to identify and remediate vulnerabilities in the application. In addition, it is important to keep the web server and web application software up-to-date, as many vulnerabilities are discovered and patched by software vendors. It's also important to comply with regulations and standards such as HIPAA, PCI-DSS that have specific requirements for handling data validation. Regular security training for users and staff on how to identify and report suspicious activity can also help to mitigate the risk of validation failures.