How to sanitize and validate user input to pass a Checkmarx scan

Question

I have an endpoint that receives a String from the client as seen below:

@GET
@Path(\"/{x}\")
public Response doSomething(@PathParam(\"x\") String x) {
    Stri         


        

Answer 1

HtmlUtils from spring-web got the job done with:

HtmlUtils.htmlEscape(x)

Maven dependency:

    org.springframework
    spring-web
    5.1.7.RELEASE