FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to 1.3.1-stable and 1.3.9-beta, attacker-controlled path input is joined with a trusted base path prior to sanitization, allowing traversal sequences (e.g., ../) to escape the intended shared directory. As a result, an unauthenticated attacker possessing a valid public share hash with delete permissions enabled can delete arbitrary files outside the shared directory within the share owner’s configured storage scope. This affects public/api/resources and public/api/resources/bulk. This vulnerability is fixed in 1.3.1-stable and 1.3.9-beta.

Project Subscriptions

Vendors Products
Gtsteffaniak Subscribe
Filebrowser Subscribe
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-fwj3-42wh-8673 FileBrowser Public Share DELETE API Path Traversal Allows Unauthenticated Arbitrary File Deletion
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 14 May 2026 19:00:00 +0000

Type Values Removed Values Added
First Time appeared Gtsteffaniak
Gtsteffaniak filebrowser
Vendors & Products Gtsteffaniak
Gtsteffaniak filebrowser

Thu, 14 May 2026 17:30:00 +0000

Type Values Removed Values Added
Description FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to 1.3.1-stable and 1.3.9-beta, attacker-controlled path input is joined with a trusted base path prior to sanitization, allowing traversal sequences (e.g., ../) to escape the intended shared directory. As a result, an unauthenticated attacker possessing a valid public share hash with delete permissions enabled can delete arbitrary files outside the shared directory within the share owner’s configured storage scope. This affects public/api/resources and public/api/resources/bulk. This vulnerability is fixed in 1.3.1-stable and 1.3.9-beta.
Title FileBrowser Quantum: Unauthenticated Path Traversal in Public Share Delete Allows Arbitrary File Deletion
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-14T17:07:30.602Z

Reserved: 2026-05-06T19:38:10.567Z

Link: CVE-2026-44542

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-14T18:16:50.157

Modified: 2026-05-14T18:26:39.827

Link: CVE-2026-44542

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-14T18:45:26Z

Weaknesses