CVE-2026-55668

File Browser: ScopedFs follows a dangling symlink on write, letting a scoped user create files outside their scope

State: Published
Severity: 6.3 Medium
Published: Jul 8, 2026
Updated: Jul 8, 2026
Reserved: Jun 17, 2026

Description

File Browser provides a web file managing interface. Prior to 2.63.16, ScopedFs validates the nearest existing ancestor of a dangling symlink as in scope and then follows the symlink during file creation, allowing an authenticated user with Create and Modify permissions to create attacker-controlled files outside the user's scope. This issue is fixed in version 2.63.16.

Scores

CVSS	Score	Vector	Source
3.1	6.3 Medium	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N	GitHub_M

Weaknesses

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-59 Improper Link Resolution Before File Access ('Link Following')

Affected Products

Product	Versions
filebrowserfilebrowser	< 2.63.16Affected

References

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