CVE-2026-90930

File Browser through 2.63.23 Path Traversal via Symlink Alias

MEDIUM
6.8
CVSS Score
Published: September 14, 2026 at 12:48 PM UTC
Updated: September 24, 2026 at 08:57 PM UTC
1 product affected across 1 vendorFilebrowser

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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.5%
SSVC
PoC

Description

File Browser through 2.63.23 applies path rules to the requested lexical path but resolves symbolic links without reapplying rules to the target, allowing authenticated users to bypass deny rules. Attackers can read and overwrite rule-denied files by accessing them through in-scope symbolic link aliases that resolve to denied paths.

Affected

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

v ≤ 2.63.23

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

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

CVSS

6.8MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-59

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