Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-39812

Severity CVSS v4.0:
Pending analysis
Type:
CWE-79 Cross-Site Scripting (XSS)
Publication date:
14/04/2026
Last modified:
21/04/2026

Description

A improper neutralization of input during web page generation ('cross-site scripting') 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 PaaS 5.0.0 through 5.0.5, FortiSandbox PaaS 4.4.0 through 4.4.8, FortiSandbox PaaS 4.2 all versions may allow attacker to execute unauthorized code or commands via

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 4.80 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

Base Score 3.x
4.80
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:fortinet:fortisandbox:*:*:*:*:*:*:*:* 4.2.0 (including) 4.2.8 (including)
cpe:2.3:a:fortinet:fortisandbox:*:*:*:*:*:*:*:* 4.4.0 (including) 4.4.9 (excluding)
cpe:2.3:a:fortinet:fortisandbox:*:*:*:*:*:*:*:* 5.0.0 (including) 5.0.6 (excluding)
cpe:2.3:a:fortinet:fortisandbox_cloud:*:*:*:*:*:*:*:* 22.2.4134 (including) 23.1.4260 (including)
cpe:2.3:a:fortinet:fortisandbox_cloud:*:*:*:*:*:*:*:* 23.3.4329 (including) 24.1.4436 (including)
cpe:2.3:a:fortinet:fortisandbox_cloud:5.0.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortisandbox_cloud:5.0.5:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools