simple-php-router through 5.4.1.7 IP restriction bypass via forwarding headers

{
                    "vendor": "pecee",
                    "product": "simple-router",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:composer/pecee/simple-router",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "custom",
                            "lessThanOrEqual": "5.4.1.7"
                        }
                    ],
                    "repo": "https://github.com/skipperbent/simple-php-router",
                    "programFiles": [
                        "src/Pecee/Http/Middleware/IpRestrictAccess.php",
                        "src/Pecee/Http/Request.php"
                    ]
                }