Exposure of Sensitive Information to an Unauthorized Actor
Sinapsi eSolar Light with firmware before 2.0.3970_schsl_2.2.85 allows attackers to discover cleartext passwords by reading the HTML source code of the mail-configuration page.
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.