CVE-2026-39813

⛔ critical

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 <insert attack vector here>

CVSS Score

9.8

Critical

EPSS Score

0.1

Exploit Probability

Published Date

2026-04-14

First Seen: 2026-04-15

📊 Relative Risk Intelligence

This CVE is Very High Risk - more severe than 90.4% of all 321,566 vulnerabilities in our database.

#30,777

Top 10% most severe

Severity Percentile

🎯 CISA SSVC Assessment Updated: Apr 14, 2026

🔍 Exploitation Status

None

No known exploits

⚙️ Automatable

YES

Can be exploited automatically

💥 Technical Impact

Total

Complete system compromise possible

SSVC data provided by CISA

Last Modified 2026-04-20

Source NVD 🔗

CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE IDs (Weakness Types)

CWE-24

📦 Affected Products 2

Vendor	Product	Status	Affected Versions
fortinet	fortisandbox	Affected	> 4.4.0 < 4.4.9
fortinet	fortisandbox	Affected	> 5.0.0 < 5.0.6

🔗 References 1

https://fortiguard.fortinet.com/psirt/FG-IR-26-112

Vendor Advisory

🔗 Related CVEs 6

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-26083	⛔ critical	9.8	0.1	A missing authorization vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.1, FortiSandbox 4.4.0 through 4.4.8, Fo...	2026-05-12
CVE-2026-39808	⛔ critical	9.8	0.3	A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet F...	2026-04-14
CVE-2026-39812	🔶 medium	4.8	0.0	A improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Fortinet FortiSa...	2026-04-14
CVE-2025-53608	🔶 medium	4.8	0.0	An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] vulnerabi...	2026-03-10
CVE-2025-52436	⚠️ high	8.8	0.2	An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] vulnerabi...	2026-02-10
CVE-2025-67685	ℹ️ low	3.8	0.0	A Server-Side Request Forgery (SSRF) vulnerability [CWE-918] vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.4,...	2026-01-13

These CVEs affect the same products