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CVE

CVE-2026-72839

filebrowser through 2.63.16 Privilege Escalation via Signup
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CVE

CVE-2026-72839

filebrowser through 2.63.16 Privilege Escalation via Signup

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.3
-
4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72839.json, https://github.com/filebrowser/filebrowser/security/advisories/GHSA-6759-996p-gpj6, https://nvd.nist.gov/vuln/detail/CVE-2026-72839, https://www.vulncheck.com/advisories/filebrowser-through-privilege-escalation-via-signup

Severity

0

CVSS Score
0
10

Basic Information

Base CVSS
0
EPSS Probability
0.00394%
EPSS Percentile
0.32296%
Introduced Version
0
Fix Available
bd1520fe095d2f373f8fbcbfc01f855ade7e90fb

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