Mo. Rev. Stat. § 301.576
A motor vehicle dealer, as defined in section 301.550, and the dealer's owners, shareholders, officers, employees, and agents who, in conjunction with the actual or potential sale or lease of a motor vehicle, arrange to provide, actually provide, or otherwise make available to a vehicle purchaser, lessee, or other person any third-party motor vehicle history report shall not be liable to the vehicle purchaser, lessee, or other person for any errors, omissions, or other inaccuracies contained in the third-party motor vehicle history report that are not based on information provided directly to the preparer of the third-party motor vehicle history report by that dealer. For purposes of this section, a "third-party motor vehicle report" means any information prepared by a party other than the dealer relating to any one or more of the following: vehicle ownership or titling history; liens on the vehicle; vehicle service, maintenance, or repair history; vehicle condition; or vehicle accident or collision history. This section shall not apply in the case of any dealer having actual knowledge about a vehicle's accident, salvage, or service history which is different from, or not disclosed on, any third-party motor vehicle report.
§ 301.576, RSMo