The file manager option in CuppaCMS before 2019-11-12 allows an authenticated attacker to upload a malicious file within an image extension and through a custom request using the rename function provided by the file manager is able to modify the image extension into PHP resulting in remote arbitrary code execution.
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
Link | Tags |
---|---|
https://github.com/CuppaCMS/CuppaCMS/issues/7 | third party advisory |