External risk intelligence
FileBrowser Quantum could allow external attackers to delete arbitrary files from storage.
FileBrowser Quantum could allow external attackers with valid public share links to delete files outside intended storage areas, potentially exposing sensitive files to permanent deletion and impacting service availability. No active exploitation is currently reported.
Halo Surface Signal
4/ 5FileBrowser Quantum is a web-based file management application inherently designed to host and expose content via public share links to external users. Due to this primary function of enabling internet-accessible file sharing, the application is frequently deployed in an internet-facing configuration.
Exposure facts
H – Horizon Alert
A vulnerability in the FileBrowser Quantum web-based file manager allows for unauthorized file deletion. Due to improper input validation, an individual with specific system access could manipulate file paths to delete items stored outside of the intended shared directories. This issue poses a risk to data availability, as it enables the removal of files beyond the scope of a user's defined permissions.
A – Asset Exposure
The FileBrowser Quantum platform, a self-hosted file management tool, is used to organize and provide access to stored digital content. When this system is configured to expose files via public shares, unauthorized individuals with specific access rights could manipulate file paths to interact with data outside the intended directory. This exposure could lead to the permanent deletion of sensitive files within the configured storage scope, impacting data integrity and potential service availability.
L – Live Threat
Currently, there are no reported indicators of active exploitation or public proof-of-concept activity associated with this file management vulnerability. For this risk to materialize, an attacker would require specific configuration settings, such as valid share access and enabled deletion permissions. Consequently, the available context does not indicate active exploitation or observed targeting at this time.
O – Operational Fix
To address this risk, please update your FileBrowser Quantum installation to the latest available release. We recommend reviewing your current public share configurations; if you have shares with delete permissions enabled, consider disabling this feature until the update is applied to minimize potential impact. Prioritizing these administrative tasks will help maintain the security and integrity of your file storage.