Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. Prior to version 4.8.4, the application allows uploading files (project logos) without validating the file type or content. It trusts the extension provided by the user.
These files are saved to the uploads/ directory and served statically. An attacker can upload an HTML file containing malicious JavaScript. Since authentication tokens are likely stored in localStorage (as they are returned in the API body), this XSS can lead to account takeover.
This issue has been patched in version 4.8.4.
Attack Parameters
Attack Vector
Network
Атака возможна удалённо
Attack Complexity
Low
Легко эксплуатировать
Privileges Required
Low
Нужны базовые права
User Interaction
Required
Нужно действие пользователя
Impact Assessment
Confidentiality
Low
Частичная утечка данных
Integrity
High
Полная модификация данных
Availability
None
Нет нарушения работы
CVSS Vector v3.1