Improper Input Validation
Frourio-express is a minimal full stack framework, for TypeScript. Frourio-express users who uses frourio-express version prior to v0.26.0 and integration with class-validator through `validators/` folder are subject to a input validation vulnerability. Validators do not work properly for request bodies and queries in specific situations and some input is not validated at all. Users are advised to update frourio to v0.26.0 or later and to install `class-transformer` and `reflect-metadata`.
CWE-20 - Improper Input Validation
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.