---
id: CVE-2026-39813
title: >-
  A path traversal: '../filedir' vulnerability in Fortinet FortiSandbox 5.0.0
  through 5.0.5, FortiSandbox 4.4.0 through 4.4.8 may allow attacker to
  escalation of privilege via specially crafted HTTP requests.
summary: >-
  A path traversal: '../filedir' vulnerability in Fortinet FortiSandbox 5.0.0
  through 5.0.5, FortiSandbox 4.4.0 through 4.4.8 may allow attacker to
  escalation of privilege via specially crafted HTTP requests.
severity: critical
cvss: 9.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C'
cvssSource: cna
cwe:
  - CWE-24
vendor: Fortinet
product: FortiSandbox
affected:
  - FortiSandbox >= 5.0.0 <= 5.0.5
  - FortiSandbox >= 4.4.0 <= 4.4.8
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-04-14T00:00:00+00:00'
exploitAvailable: true
published: '2026-04-14'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T15:42:16.642Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-39813'
references:
  - url: 'https://fortiguard.fortinet.com/psirt/FG-IR-26-112'
    label: 'https://fortiguard.fortinet.com/psirt/FG-IR-26-112'
tags:
  - cve.org
  - exploit-available
epss: 0.22224
epssPercentile: 0.97694
exploits:
  github: 2
  githubRepos:
    - 'https://github.com/HORKimhab/CVE-2026-39813'
    - 'https://github.com/ashrafzaryouh/CVE-2026-39813'
  checkedAt: '2026-11-08T19:19:52.298Z'
ingestedAt: '2026-11-06T15:54:03.967Z'
---

## Overview

A path traversal: '../filedir' vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.5, FortiSandbox 4.4.0 through 4.4.8 may allow attacker to escalation of privilege via specially crafted HTTP requests.

## Affected

- `FortiSandbox >= 5.0.0 <= 5.0.5`
- `FortiSandbox >= 4.4.0 <= 4.4.8`

## Remediation

Upgrade to FortiSandbox version 5.2.0 or above
Upgrade to FortiSandbox version 5.0.6 or above
Upgrade to FortiSandbox version 4.4.9 or above