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v4/en/c3-validate-input-and-handle-exceptions.md

@@ -12,7 +12,7 @@ permalink: /v4/en/c3-validate-all-input
 
 ## Description
 
-Input validation is a programming technique that ensures only properly formatted data may enter a software system component. When the injection attack targets a client (for exmample JavaScript based attacks), web servers can perform quoting/encoding on the attacker-provided data before forwarding it to the client. 
+Input validation is a programming technique that ensures only properly formatted data may enter a software system component. When the injection attack targets a client (for example JavaScript based attacks), web servers can perform quoting/encoding on the attacker-provided data before forwarding it to the client. 
 
 Injection attacks commonly occur if an application confuses data input as executable commands and are often possible where input validation is forgotten or implemented wrong. For example, imagine that a web application accepts an email address as input from a user. The email address would be the expected “data”. Attackers now search for ways to confuse applications to execute this (supposed) data as commands. Different injection attacks target different areas: