CVE-2026-44542

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.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-fwj3-42wh-8673	Exploit Vendor Advisory
https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-fwj3-42wh-8673	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:gtsteffaniak:filebrowser_quantum::-::::::*
	cpe:2.3:a:gtsteffaniak:filebrowser_quantum::beta::::::*

History

No history.

Information

Published : 2026-05-14 18:16

Updated : 2026-06-17 10:50

NVD link : CVE-2026-44542

Mitre link : CVE-2026-44542

CVE.ORG link : CVE-2026-44542

JSON object : View

Products Affected

gtsteffaniak

filebrowser_quantum

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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