Exposure of Sensitive Information to an Unauthorized Actor
PHP-Nuke 7.0 allows remote attackers to obtain the installation path via certain characters such as (1) ", (2) ', or (3) > in the search field, which reveals the path in an error message.
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.