GeoServer < 2.19.6 Insecure Deserialization

According to its banner, the version of GeoServer running on the remote host is prior to 2.19.6 or 2.20.0 2.20.4. It is, therefore, affected by an Insecure Deserialization Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version...