Exposure of Sensitive Information to an Unauthorized Actor
Cybozu Office 10.3.0 allows remote attackers to read image files via a crafted e-mail message, a different vulnerability than CVE-2015-8487.
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.