FeHelper through 2019-06-19 allows arbitrary code execution during a JSON format operation, as demonstrated by the {a:(function(){confirm(1)})()} input.
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Fehelper | Fehelper_project | * | 2019-06-19 (including) |