The host is installed with Jenkins LTS through 2.263.1 or Jenkins rolling release through 2.274 and is prone to an untrusted data deserialisation vulnerability. A flaw is present in the application, which fails to properly handle REST API XML deserialization errors. Successful exploitation allows attackers allows attackers with View/Create, Job/Create, Agent/Create, or their respective */Configure permissions to inject crafted content into Old Data Monitor that results in the instantiation of potentially unsafe objects when discarded by an administrator.