Exposure of Sensitive Information to an Unauthorized Actor
The Yoast SEO WordPress plugin before 17.3-RC9 discloses the full internal path of featured images in posts via the wp/v2/posts REST endpoints which could help an attacker identify other vulnerabilities or help during the exploitation of other identified vulnerabilities.
CWE-200 - Information Exposure
An information exposure vulnerability is categorized as an information flow (IF) weakness, which can potentially allow unauthorized access to otherwise classified information in the application, such as confidential personal information (demographics, financials, health records, etc.), business secrets, and the application's internal environment.