Language: JavaScript
Label: safe
CWE: CWE-79 \u2014 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Code:
    function renderListItems(items, render_item) {
        let templated_content = html``;

        for (const [i, file] of items.entries()) {
            if (i === 0) {
                templated_content = render_item(file);
            } else {
                templated_content = html`${templated_content}, ${render_item(file)}`;
            }
        }

        return templated_content;
    }