Output Validation

This article is a stub. You can help OWASP by expanding it or discussing it on its Talk page.

This is a control. To view all control, please see the Control Category page.

Description

Output validation refers to the process of validating the output of a process before it is sent to some recepient. For example, if you search your output for credit card numbers and replace them with asterisks (*), you have validated the output before sending it. You might also validate the output for common attacks, such as Cross-site Scripting (XSS) and SQL Injection before sending it.

NOTE: See HTML Entity Encoding which is a sort of output validation.

Related Attacks

• SQL Injection
• Code Injection
• XPATH Injection
• Interpreter Injection
• Comment Injection Attack
• Argument Injection or Modification
• Cross-site Scripting (XSS)
• Cross Site History Manipulation (XSHM)
• Regular expression Denial of Service - ReDoS
• Cross Site Tracing