CVE-2026-55668

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

MEDIUM
6.3
CVSS Score
Published: July 8, 2026 at 02:55 PM UTC
Updated: July 8, 2026 at 05:17 PM UTC
1 product affected across 1 vendorFilebrowser

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Severity
MEDIUM6.3
Exploit prediction
EPSS 0.4%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.63.16
Affected range stops below 2.63.16, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.3MEDIUMGitHub_M
Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-22CWE-59

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