CVE-2025-52436: XSS via back button

Published Feb 10, 2026
·
Updated

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.

Other sources

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.1, FortiSandbox 4.4.0 through 4.4.7, FortiSandbox 4.2 all versions, FortiSandbox 4.0 all versions may allow an unauthenticated attacker to execute commands via crafted requests.

MITRE

Affected Software

6 affected componentsFixes available
Fortinet FortiSandbox>=5.0.0<=5.0.1
Fortinet FortiSandbox>=4.4.0<=4.4.7
Fortinet FortiSandbox>=4.2
Fortinet FortiSandbox>=4.0
Fortinet FortiSandbox>=4.0.0<4.4.8
Fortinet FortiSandbox>=5.0.0<5.0.2

Remediation

Information

Upgrade to FortiSandbox version 5.0.2 or above Upgrade to FortiSandbox version 4.4.8 or above

Event History

Feb 10, 2026
Advisory Published
via FortiGuard·12:00 AM
Data Sourced
via FortiGuard·12:00 AM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·03:39 PM
Data Sourced
via MITRE·03:39 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·04:16 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-52436?

CVE-2025-52436 is classified as a Cross-site Scripting vulnerability that can be exploited by unauthenticated attackers.

2

How do I fix CVE-2025-52436?

To remediate CVE-2025-52436, upgrade FortiSandbox to version 4.4.8 or 5.0.5.

3

Which FortiSandbox versions are affected by CVE-2025-52436?

FortiSandbox versions 4.4.0 to 4.4.7 and 5.0.0 to 5.0.1 are affected by CVE-2025-52436.

4

Can CVE-2025-52436 be exploited remotely?

Yes, CVE-2025-52436 can be exploited remotely by an unauthenticated attacker.

5

Is there a workaround for CVE-2025-52436?

There are no known workarounds for CVE-2025-52436; it is recommended to upgrade to a patched version.

Contact

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