Insecure Deserialization

Insecure deserialization refers to a security vulnerability that occurs when an application improperly processes data from an untrusted source. When data is serialized (converted into a format suitable for storage or transmission), it is often reconstructed or "deserialized" when needed. If this process does not validate or sanitize the incoming data, attackers can manipulate it to execute malicious actions, such as accessing unauthorized information or taking control of the application. Protecting against insecure deserialization involves implementing security measures to ensure that only trusted data is processed and that any data received is carefully checked.