An improper control of parameters allows the spoofing of the from fields of the following screens: AgentTicketCompose, AgentTicketForward, AgentTicketBounce and AgentTicketEmailOutbound. This issue affects: ((OTRS)) Community Edition 5.0.x version 5.0.39 and prior versions; 6.0.x version 6.0.24 and prior versions. OTRS 7.0.x version 7.0.13 and prior versions.