Where
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This vulnerability allows remote attackers to execute arbitrary code on affected installations of Fortinet FortiSandbox. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.2. The following CVEs are assigned: CVE-2026-84387.

First published (updated )
Advisory
ZDI-26-645

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Fortinet FortiSandbox. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.2. The following CVEs are assigned: CVE-2026-84387.

First published (updated )
Severity
9.9
AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H/E:P/RL:O/RC:C

A improper access control vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.5, FortiSandbox 4.4.0 through 4.4.8, FortiSandbox Cloud 5.0.4 through 5.0.5, FortiSandbox PaaS 5.0.4 through 5.0.5 may allow attacker to access sensitive information via crafted HTTP requests.

First published (updated )
Severity
7.2
Command Injection
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

A improper neutralization of special elements used in a command ('command injection') vulnerability in Fortinet FortiSandbox 5.2.0, FortiSandbox 5.0.0 through 5.0.6, FortiSandbox 4.4.0 through 4.4.9 may allow attacker to execute unauthorized code or commands via <insert attack vector here>

First published (updated )

Fortinet has disclosed CVE-2026-59835, an unauthenticated VNC exposure affecting FortiSandbox 5.0.0 - 5.0.2 and 4.4.3 - 4.4.8. The flaw can allow remote attackers to access the VNC server of virtual machines performing malware analysis via network requests, potentially exposing live sandbox sessions. Patches have been released by Fortinet on 14 July, and organizations using affected versions should update as soon as possible

First published (updated )
Social
reddit
Severity
8.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

A exposure of resource to wrong sphere vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.2, FortiSandbox 4.4.3 through 4.4.8 may allow an unauthenticated attacker to access the VNC server of VMs performing scanning via network requests.

First published (updated )
Severity
9.8
Command Injection, OS Command Injection
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

A improper neutralization of special elements used in an os command ('os command injection') 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 through 5.0.5, FortiSandbox PaaS 5.0.4 through 5.0.5 may allow an unauthenticated attacker to execute unauthorized commands via specifically crafted HTTP requests

1 / 2
Source: NVD
First published (updated )
Severity
9.1
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

A missing authorization vulnerability [CWE-862] in FortiSandbox, FortiSandbox Cloud and FortiSandbox PaaS WEB UI may allow an unauthenticated attacker to execute unauthorized code or commands via HTTP requests.

First published (updated )
Advisory
FG-IR-26-136
Severity
9.8
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

A missing authorization vulnerability [CWE-862] in FortiSandbox, FortiSandbox Cloud and FortiSandbox PaaS WEB UI may allow an unauthenticated attacker to execute unauthorized code or commands via HTTP requests.

1 / 2
Source: FortiGuard
First published (updated )
Severity
2.5
AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C

An Insufficiently protected credentials vulnerability [CWE-522] in FortiSanbox and FortiSanbox PaaS GUI may allow an authenticated administrator to read LDAP server credentials via client-side inspection.

First published (updated )
Advisory
FG-IR-26-113
Severity
9.1
Command Injection, OS Command Injection
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

An Improper Neutralization of Special Elements used in an OS Command ('OS command injection') vulnerability [CWE-78] in FortiSandbox may allow an unauthenticated attacker to execute unauthorized code or commands via crafted HTTP requests.

First published (updated )
Advisory
FG-IR-26-100
Severity
2.7
AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C

A insufficiently protected credentials vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.5, FortiSandbox 4.4 all versions, FortiSandbox PaaS 5.0.1 through 5.0.5 may allow an authenticathed administrator to read LDAP server credentials via client-side inspection.

1 / 2
Source: MITRE

Remedy

Upgrade to upcoming FortiSandbox version 5.2.0 or above Upgrade to FortiSandbox version 5.0.6 or above Upgrade to FortiSandbox PaaS version 5.0.6 or above
First published (updated )
Severity
9.8
Command Injection, OS Command Injection
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSandbox 4.4.0 through 4.4.8 may allow attacker to execute unauthorized code or commands via <insert attack vector here>

1 / 3
Source: NVD
First published (updated )
Severity
9.1
Path Traversal
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

A Path Traversal vulnerability [CWE-24] in FortiSandbox JRPC API may allow an unauthenticated attacker to bypass authentication via specially crafted HTTP requests.

First published (updated )
Advisory
FG-IR-26-112
Severity
9.8
Path Traversal
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

A Path Traversal vulnerability [CWE-24] in FortiSandbox JRPC API may allow an unauthenticated attacker to bypass authentication via specially crafted HTTP requests.

1 / 2
Source: FortiGuard
First published (updated )
Severity
6.2
Path Traversal
AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H/E:F/RL:O/RC:C

An Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability [CWE-22] in FortiSandbox, FortiSandbox Cloud, FortiSandbox PaaS and FortiSandbox Cloud WEB UI may allow a privileged attacker with super-admin profile and CLI access to delete an arbitrary directory via HTTP crafted requests.

First published (updated )
Advisory
FG-IR-26-115
Severity
4.3
XSS
AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiSandbox and FortiSandbox Cloud may allow a privileged attacker to perform a stored XSS attack via crafted HTTP requests.

First published (updated )
Advisory
FG-IR-26-110
Severity
4.8
XSS
AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C

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 <insert attack vector here>

1 / 2
Source: MITRE

Remedy

Upgrade to FortiSandbox version 5.0.6 or above Upgrade to FortiSandbox version 4.4.9 or above Upgrade to FortiSandbox PaaS version 5.0.6 or above Upgrade to FortiSandbox PaaS version 4.4.9 or above
First published (updated )
Severity
6.7
Path Traversal
AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H/E:F/RL:O/RC:C

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.

1 / 2
Source: MITRE

Remedy

Fortinet remediated this issue in FortiSandbox Cloud version 5.0.5 and hence customers do not need to perform any action. Upgrade to upcoming 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 Upgrade to FortiSandbox PaaS version 5.0.5 or above
First published (updated )
Severity
4.9
XSS
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiSandbox and FortiSandbox Cloud may allow an attacker to perform an XSS attack via crafted HTTP requests.

First published (updated )
Advisory
FG-IR-26-109
Severity
5.4
XSS
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiSandbox and FortiSandbox Cloud may allow an attacker to perform an XSS attack via crafted HTTP requests.

1 / 2
Source: FortiGuard

Remedy

Upgrade to FortiSandbox PaaS version 5.0.5 or above Upgrade to FortiSandbox version 5.0.5 or above
First published (updated )
Severity
4.8
XSS
AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N/E:P/RL:X/RC:C

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiSandbox LDAP Server feature may allow an authenticated privileged attacker to execute code via crafted requests.

1 / 2
Source: FortiGuard

Remedy

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 5.0.5 and hence customers do not need to perform any action.
First published (updated )
Severity
4.6
AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N/E:P/RL:X/RC:C

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiSandbox LDAP Server feature may allow an authenticated privileged attacker to execute code via crafted requests.

First published (updated )
Advisory
FG-IR-26-091
Severity
7.9
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiSandbox may allow an unauthenticated attacker to execute commands via crafted requests. FortiSandbox PaaS versions 4.4.8 and 5.0.5 contains the fix for this vulnerability.

First published (updated )
Advisory
FG-IR-25-093
Severity
9.6
XSS
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiSandbox may allow an unauthenticated attacker to execute commands via crafted requests. FortiSandbox PaaS versions 4.4.8 and 5.0.5 contains the fix for this vulnerability.

1 / 2
Source: FortiGuard

Remedy

Upgrade to FortiSandbox version 5.0.2 or above Upgrade to FortiSandbox version 4.4.8 or above
First published (updated )

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Fortinet FortiSandbox. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2025-67685.

First published (updated )

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Fortinet FortiSandbox. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2025-67685.

First published (updated )
Advisory
ZDI-26-048

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