CVE-2025-54353

Published Dec 9, 2025 CVSS 3.1 · 5.3 Medium EPSS 6.8% KEV · Not listed

Description

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.2, FortiSandbox 4.4.0 through 4.4.7, FortiSandbox 4.2 all versions, FortiSandbox 4.0 all versions may allow an attacker to perform an XSS attack via crafted HTTP requests.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Fortinet

FortiSandbox

unaffected

Version	Status	Constraints
`5.0.0`	affected	≤ 5.0.2
`4.4.0`	affected	≤ 4.4.7
`4.2.1`	affected	≤ 4.2.8
`4.0.0`	affected	≤ 4.0.6

Configuration 1 [-]

OR	cpe:2.3:a:fortinet:fortisandbox::::::::
	cpe:2.3:a:fortinet:fortisandbox::::::::
	cpe:2.3:a:fortinet:fortisandbox::::::::
	cpe:2.3:a:fortinet:fortisandbox::::::::

No data.

No data available yet.

Remediation

Vendor Solution

Upgrade to FortiSandbox version 5.0.3 or above Upgrade to FortiSandbox version 4.4.8 or above Fortinet remediated this issue in FortiSandbox Cloud version 24.2 (not released) and hence customers do not need to perform any action.

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: 6.8% (6.758% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://fortiguard.fortinet.com/psirt/FG-IR-25-477

History

Jan 14, 2026 1:00 PM Affected versions updated View changes

Type	Values Removed	Values Added
CPEs	cpe:2.3:a:fortinet:fortisandbox:4.2.0:::::::*

Dec 9, 2025 9:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Dec 9, 2025 8:15 PM Affected versions updated View changes

Type	Values Removed	Values Added
CPEs		cpe:2.3:a:fortinet:fortisandbox::::::::

Dec 9, 2025 5:45 PM Description updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.2, FortiSandbox 4.4.0 through 4.4.7, FortiSandbox 4.2 all versions, FortiSandbox 4.0 all versions may allow an attacker to perform an XSS attack via crafted HTTP requests.
First Time appeared		Fortinet Fortinet fortisandbox
Weaknesses		CWE-79
CPEs		cpe:2.3:a:fortinet:fortisandbox:4.0.0:::::::* cpe:2.3:a:fortinet:fortisandbox:4.0.1:::::::* cpe:2.3:a:fortinet:fortisandbox:4.0.2:::::::* cpe:2.3:a:fortinet:fortisandbox:4.0.3:::::::* cpe:2.3:a:fortinet:fortisandbox:4.0.4:::::::* cpe:2.3:a:fortinet:fortisandbox:4.0.5:::::::* cpe:2.3:a:fortinet:fortisandbox:4.0.6:::::::* cpe:2.3:a:fortinet:fortisandbox:4.2.0:::::::* cpe:2.3:a:fortinet:fortisandbox:4.2.1:::::::* cpe:2.3:a:fortinet:fortisandbox:4.2.2:::::::* cpe:2.3:a:fortinet:fortisandbox:4.2.3:::::::* cpe:2.3:a:fortinet:fortisandbox:4.2.4:::::::* cpe:2.3:a:fortinet:fortisandbox:4.2.5:::::::* cpe:2.3:a:fortinet:fortisandbox:4.2.6:::::::* cpe:2.3:a:fortinet:fortisandbox:4.2.7:::::::* cpe:2.3:a:fortinet:fortisandbox:4.2.8:::::::* cpe:2.3:a:fortinet:fortisandbox:4.4.0:::::::* cpe:2.3:a:fortinet:fortisandbox:4.4.1:::::::* cpe:2.3:a:fortinet:fortisandbox:4.4.2:::::::* cpe:2.3:a:fortinet:fortisandbox:4.4.3:::::::* cpe:2.3:a:fortinet:fortisandbox:4.4.4:::::::* cpe:2.3:a:fortinet:fortisandbox:4.4.5:::::::* cpe:2.3:a:fortinet:fortisandbox:4.4.6:::::::* cpe:2.3:a:fortinet:fortisandbox:4.4.7:::::::* cpe:2.3:a:fortinet:fortisandbox:5.0.0:::::::* cpe:2.3:a:fortinet:fortisandbox:5.0.1:::::::* cpe:2.3:a:fortinet:fortisandbox:5.0.2:::::::*
Vendors & Products		Fortinet Fortinet fortisandbox
References		https://fortiguard.fortinet.com/psirt/FG-IR-25-477
Metrics		cvssV3_1 `{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:F/RL:X/RC:C'}`