Improperly controlled modification of dynamically-determined object attributes allows object injection. The module stores certain data as PHP-serialized strings, and if malicious data is written directly to the field, it can lead to object injection during the unserialization process. This issue requires the attacker to have permissions to edit a content entity with an attached `plotly js graph` field. Additionally, the core JSON:API module must be enabled with the option to accept all create, read, update, and delete operations, or the attacker must have an alternative method to edit field values directly.