CVE-2026-72839

filebrowser through 2.63.16 fails to properly restrict scope and permissions when self-signup is enabled with default CreateUserDir setting. Unauthenticated attackers can register accounts that inherit the server root scope with full create, modify, delete, rename, share, and download permissions, allowing unrestricted access to all files.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-6759-996p-gpj6
https://www.vulncheck.com/advisories/filebrowser-through-privilege-escalation-via-signup
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-6759-996p-gpj6

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-13 22:17

Updated : 2026-09-08 20:32

NVD link : CVE-2026-72839

Mitre link : CVE-2026-72839

CVE.ORG link : CVE-2026-72839

JSON object : View

Products Affected

No product.

CWE

CWE-266

Incorrect Privilege Assignment

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