File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. Prior to version 2.61.0, when a user creates a public share link for a directory, the withHashFile middleware in http/public.go uses filepath.Dir(link.Path) to compute the BasePathFs root. This sets the filesystem root to the parent directory instead of the shared directory itself, allowing anyone with the share link to browse and download files from all sibling directories.
This issue has been patched in version 2.61.0.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 3
https://github.com/filebrowser/filebrowser/commit/31194fb57a5b92e7155219d7ec727…
security-advisories@github.com
https://github.com/filebrowser/filebrowser/releases/tag/v2.61.0
security-advisories@github.com
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-mr74-928f-r…
security-advisories@github.com