CVE-2026-72839filebrowser through 2.63.16 Privilege Escalation via Signup
Updated under an hour ago ()
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It affects filebrowser. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-266
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Aug 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
filebrowser filebrowser filebrowser:filebrowser (from the name) | through 2.63.16 | CNA record |
References
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-6759-996p-gpj6vendor-advisory
- https://www.vulncheck.com/advisories/filebrowser-through-privilege-escalation-via-signupthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.