OpenMRS before 2.24.0 is affected by an Insecure Object Deserialization vulnerability that allows an unauthenticated user to execute arbitrary commands on the targeted system via crafted XML data in a request body.
The Reporting Compatibility Add On before 2.0.4 for OpenMRS, as distributed in OpenMRS Reference Application before 2.6.1, does not authenticate users when deserializing XML input into ReportSchema objects. The result is that remote unauthenticated users are able to execute operating system commands by crafting malicious XML payloads, as demonstrated by a single admin/reports/reportSchemaXml.form request.