Language: PHP
Label: vulnerable
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 AngelType_name_render(AngelType $angeltype, $plain = false)
{
    if ($plain) {
        return sprintf('%s (%u)', $angeltype->name, $angeltype->id);
    }

    return '<a href="' . angeltype_link($angeltype->id) . '">'
        . ($angeltype->restricted ? icon('mortarboard-fill') : '') . $angeltype->name