CVE-2026-72839
filebrowser through 2.63.16 Privilege Escalation via Signup
- State
- Published
- Severity
- 9.3 Critical
- Published
- Aug 13, 2026
- Updated
- Aug 14, 2026
- Reserved
- Aug 10, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-266 Incorrect Privilege Assignment
Affected Products
| Product | Versions |
|---|---|
filebrowserfilebrowser |
|
References
- GitHub Security Advisory (GHSA-6759-996p-gpj6)vendor-advisory
- VulnCheck Advisory: filebrowser through 2.63.16 Privilege Escalation via Signupthird-party-advisory
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