CVE-2025-0020 – ArcGIS OAuth 2.0 API Authentication Privilege Abuse Vulnerability

Violation of Secure Design Principles, Hidden Functionality, Incorrect Provision of Specified Functionality vulnerability in ArcGIS (Authentication) allows Privilege Abuse, Manipulating Hidden Fields, Configuration/Environment Manipulation.

The ArcGIS client_credentials OAuth 2.0 API implementation does not adhere to the RFC/standards; This hidden (known and by-design, but undocumented) functionality enables a requestor (Referred to as client in RFC 6749) to request an, undocumented, custom token expiration from ArcGIS (Referred to as authorization server in RFC 6749).

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