Description: Insecure Direct Object References (IDOR) are a security vulnerability in web applications that allows an attacker to access objects directly without proper authorization. This vulnerability occurs when an application uses object identifiers (such as ID numbers) in user requests without implementing adequate access controls. For example, if a user can access a resource via a URL containing an ID, an attacker could modify that ID to access resources that do not belong to them. IDOR is a form of attack that relies on manipulating parameters in the URL or input forms, which can lead to the exposure of sensitive data, such as personal or financial information. The lack of validation and authorization in accessing these objects is what makes this vulnerability critical. Identifying and mitigating IDOR is essential to protect the integrity and confidentiality of data in web applications, and its detection has become a fundamental part of security testing in software development.
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