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VulnerabilityPublished Updated

CVE-2025-52436: Fortinet FortiSandbox · Execute Unauthorized Code or Commands

Affects Fortinet FortiSandboxSource CVE Database V5

0

Not known to be exploited · CVSS 7.9 High.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score
7.9High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
7.3% chance of exploitation in 30 days – higher than 94% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
FortinetFortiSandboxAffected
  • >=5.0.0 <=5.0.1
  • >=4.4.0 <=4.4.7
  • >=4.2.1 <=4.2.8
  • >=4.0.0 <=4.0.6
Fixed in–

CPE configurations (25)

  • cpe:2.3:a:fortinet:fortisandbox:5.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:fortinet:fortisandbox:5.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:fortinet:fortisandbox:4.4.7:*:*:*:*:*:*:*
  • cpe:2.3:a:fortinet:fortisandbox:4.4.6:*:*:*:*:*:*:*
  • cpe:2.3:a:fortinet:fortisandbox:4.4.5:*:*:*:*:*:*:*
  • cpe:2.3:a:fortinet:fortisandbox:4.4.4:*:*:*:*:*:*:*

AI-suggested

To mitigate CVE-2025-52436, organizations should implement the following specific measures: 1) Immediately restrict network access to the FortiSandbox management interface using network segmentation, VPNs, or IP whitelisting to limit exposure to trusted administrators only. 2) Deploy web application firewalls (WAFs) with custom rules to detect and block malicious input patterns targeting the FortiSandbox web interface. 3) Educate administrators and users about the risks of interacting with untrusted links or web content related to FortiSandbox management. 4) Monitor FortiSandbox logs and network traffic for unusual or suspicious activity indicative of exploitation attempts. 5) Regularly check Fortinet's advisories and apply official patches or updates as soon as they become available to address this vulnerability. 6) Consider implementing multi-factor authentication (MFA) for FortiSandbox access to reduce the risk of unauthorized use if user interaction is involved. 7) Conduct internal penetration testing and vulnerability assessments focusing on FortiSandbox to identify potential exploitation vectors. These targeted actions go beyond generic advice and focus on reducing the attack surface and detecting exploitation attempts until a patch is applied.

Description

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.1, 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.

References

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