Securing V2X (Vehicle-to-Everything) communication is essential for IoV (Internet of Vehicles) as it improves road safety. As a complement to cryptographic solutions, trust models are advantageous against insider attackers in IoV. However, only a few works consider the Misbehavior Detection (MD) and Misbehavior Report (MR) of V2X messages, and the employment of On-Board Sensor (OBS) data is also missing. With this context, this poster presents a lightweight cooperative trust model taking both OBS data and V2X messages into account to eliminate malicious messages and misbehaving vehicles.