{"id":"CVE-2026-72839","title":"filebrowser through 2.63.16 fails to properly restrict scope and permissions when self-signup is enabled with default CreateUserDir setting","summary":"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 cre…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-266"],"published":"2026-08-13","updated":"2026-09-08","sourceUpdated":"2026-09-08T20:32:39.347","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72839","references":[{"url":"https://github.com/filebrowser/filebrowser/security/advisories/GHSA-6759-996p-gpj6","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/filebrowser-through-privilege-escalation-via-signup","label":"disclosure@vulncheck.com"},{"url":"https://github.com/filebrowser/filebrowser/security/advisories/GHSA-6759-996p-gpj6","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00574,"epssPercentile":0.45095,"ingestedAt":"2026-09-08T21:11:12.277Z","slug":"CVE-2026-72839","body":"## Overview\n\nfilebrowser 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}