Exposure of Sensitive Information to an Unauthorized Actor
cPanel before 57.9999.54 allows arbitrary file-read operations for Webmail accounts via Branding APIs (SEC-120).
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.