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:
    public function setAllowedMime($types) {

        $this->allowed_mime = $types;

        $mime_types = (new cmsConfigs('mimetypes.php'))->getAll();

        foreach ($this->allowed_mime as $mime) {
            if(isset($mime_types[$mime])){
                $this->allowed_mime_ext[] = $mime_types[$mime];
            }
        }

        return $this;
    }