An SQL injection vulnerability exists in Stock-Forecaster <=01-04-2020. By sending a specially crafted 'stock-symbol' parameter to the portofolio() endpoint, it is possible to trigger an SQL injection in the application. As a result, the attacker will be able the user data or manipulate the software behavior.
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.