A vulnerability classified as critical was found in horilla up to 1.2.1. This vulnerability affects the function requestnew/getemployeeshift/createreimbursement/keyresultcurrentvalueupdate/createmeetings/createskills. The manipulation leads to deserialization. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.