Frappe is a full-stack web application framework. Prior to versions 14.91.0 and 15.52.0, a system user was able to create certain documents in a specific way that could lead to remote code execution. Versions 14.9.1 and 15.52.0 contain a patch for the vulnerability. There's no workaround; an upgrade is required.
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.