Ron, a security professional, was pen testing web applications and SaaS platforms used by his company. While testing, he found a vulnerability that allows hackers to gain unauthorized access to API…

Code injection vulnerabilities exploit unsanitized input to execute arbitrary code or queries on the server, which is a different attack vector from the unauthorized cross-origin access to existing API objects described in the scenario.

Improper use of CORS occurs when an API sets overly permissive cross-origin headers - such as Access-Control-Allow-Origin: * combined with credentials - allowing malicious scripts from unauthorized origins to make authenticated API requests. This misconfiguration bypasses the same-origin policy that normally restricts cross-domain access, granting attackers the ability to read, modify, and delete sensitive API objects. The vulnerability effectively removes the browser-enforced boundary between the attacker's origin and the target API's object-level operations.

Absence of ABAC validation means authorization policies are not enforced based on user or resource attributes, but this is a distinct server-side authorization gap rather than the cross-origin access mechanism described in the scenario.

Business logic flaws involve exploiting gaps or unintended behavior in the application's intended workflow rather than a specific protocol-level misconfiguration such as improper cross-origin resource sharing.