EUVD-2026-22331
GHSA-j3x3-rc9w-wf4m
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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ReconObtain super-admin credentials
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DeliveryAccess management HTTP interface
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ExploitCraft HTTP request with path traversal payload
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InstallSubmit malicious request via HTTP
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C2Traverse to arbitrary directory outside sandbox
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ExecuteExecute directory deletion
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ImpactService disruption or data loss
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Path canonicalization, traversal prevention
MITRE ATT&CK
2 techniques across 2 tactics: Discovery, Collection The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS 6.7 (Medium-High) indicates significant impact but limited attack surface. CVSS vector AV:N/AC:L/PR:H/UI:N/S:U shows network-accessible attack surface with low complexity but requires high privileges (super-admin role). The constraint PR:H substantially limits real-world risk compared to unauthenticated vulnerabilities; threat actor must already possess super-admin credentials and console access-a considerable prerequisite. The high integrity (I:H) and availability (I:H, A:H) impacts mean successful exploitation causes data destruction and service disruption. EPSS score, KEV status, and public POC availability not provided in input; however, absence of KEV designation and reported active exploitation suggests this is primarily a privileged-insider or compromised-admin threat rather than a public-facing attack vector. Organizations should prioritize patching based on exposure of super-admin accounts to untrusted users or networks. |
| Exploit ScenarioDerived | A malicious insider or attacker who has compromised a super-admin account (or a legitimate admin whose credentials are stolen) gains network access to the FortiSandbox management interface and sends a specially crafted HTTP request containing path traversal sequences (e.g., '../../../') to delete critical directories such as logs, backups, or configuration directories. The attacker causes immediate data loss and potential service outage without leaving audit trails if logging directories are targeted first. |
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Alert meAnalysisAIv1 – Apr 14, 2026
Path traversal vulnerability in Fortinet FortiSandbox allows privileged super-admin users with CLI access to delete arbitrary directories on the system via crafted HTTP requests. Affects FortiSandbox 5.0.0-5.0.5, 4.4.0-4.4.8, 4.2 all versions, FortiSandbox Cloud 5.0.4, and FortiSandbox PaaS 5.0.4. CVSS 6.7 reflects high integrity and availability impact but requires authenticated super-admin privileges; no public exploit code or active KEV designation identified at time of analysis.
RemediationAI
Apply vendor-released patches per Fortiguard FG-IR-26-115. For FortiSandbox on-premise, upgrade to version 4.4.9 or later (4.4 branch) or 5.0.6 or later (5.0 branch); version 4.2 is end-of-life and should be migrated to a supported version. For FortiSandbox Cloud and PaaS, versions beyond 5.0.4 should be deployed automatically by Fortinet; contact Fortinet support if CloudPaaS instances remain on 5.0.4. As an interim control, restrict super-admin CLI and HTTP management access to trusted administrative networks only, disable unnecessary administrative accounts, and monitor access logs for unauthorized super-admin session activity. See https://fortiguard.fortinet.com/psirt/FG-IR-26-115 for patch availability and additional hardening guidance.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 3 packages in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
The vulnerability exploits improper pathname validation in FortiSandbox's HTTP request handling, allowing directory traversal via malformed paths (CWE-22). The affected FortiSandbox products include the on-premise sandbox appliance (versions 4.2, 4.4.0-4.4.8, 5.0.0-5.0.5), cloud-delivered variant (FortiSandbox Cloud 5.0.4), and platform-as-a-service offering (FortiSandbox PaaS 5.0.4). The vulnerability requires authentication as a super-admin user with direct CLI access, meaning an attacker must already hold administrative credentials and network access to the management interface. The path traversal permits arbitrary directory deletion, enabling destruction of critical system, configuration, or data directories.
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Severity by source
AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
A improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.5, FortiSandbox 4.4.0 through 4.4.8, FortiSandbox 4.2 all versions, FortiSandbox Cloud 5.0.4, FortiSandbox PaaS 5.0.4 may allow a privileged attacker with super-admin profile and CLI access to delete an arbitrary directory via HTTP crafted requests.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.
An authentication bypass using an alternate path or channel [CWE-288] in Fortinet FortiOS version 7.2.0 through 7.2.1 an
Fortinet FortiWeb contains a relative path traversal allowing unauthenticated attackers to execute administrative comman
FortiOS and FortiProxy contain an authentication bypass via the Node.js websocket module allowing unauthenticated remote
A out-of-bounds write in Fortinet FortiOS versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13, 6.4.0
A heap-based buffer overflow vulnerability [CWE-122] in FortiOS version 7.2.4 and below, version 7.0.11 and below, versi
Fortinet FortiWeb contains an authenticated OS command injection allowing privilege escalation to execute unauthorized c
FortiOS SSL-VPN contains an improper authentication vulnerability that allows users to bypass two-factor authentication
Fortinet FortiAnalyzer before 5.0.12 and 5.2.x before 5.2.5; FortiSwitch 3.3.x before 3.3.3; FortiCache 3.0.x before 3.0
A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet a
Buffer overflow in the Cookie parser in Fortinet FortiOS 4.x before 4.1.11, 4.2.x before 4.2.13, and 4.3.x before 4.3.9
Unauthenticated path traversal in Fortinet FortiMail (7.2.0-7.2.9, 7.4.0-7.4.8, 7.6.0-7.6.6 and 8.0.0-8.0.1) lets a remo
OS command injection in Fortinet FortiSandbox 4.4.0-4.4.8 and FortiSandbox PaaS versions 21.3-23.4 enables remote unauth
Exploit-DB