Language: JavaScript
Label: safe
CWE: CWE-352 \u2014 Cross-Site Request Forgery (CSRF)
The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.

Code:
function tsd(num) {
    return Number(num).toFixed(2).replace(/\d(?=(\d{3})+\.)/g, '$&,');

}