CVE-2025-61886: An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79]…

CVE-2025-61886 · Severity: medium · CVSS 5.4 · Published 2026-04-14

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.4, FortiSandbox PaaS 5.0.0 through 5.0.4 may allow an attacker to perform an XSS attack via crafted HTTP requests.

Technologies: Fortinet FortiSandbox, Fortinet Fortisandbox Cloud. Vendors: Fortinet.

Quick answers

Is CVE-2025-61886 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-61886 being exploited in the wild.
How severe is CVE-2025-61886?
Medium severity, with a CVSS score of 5.4, published 14 April 2026.
Which products and versions are affected?
Fortinet FortiSandbox, Fortinet Fortisandbox Cloud. The advisory does not name versions.
Is there a fix for CVE-2025-61886?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-61886?
Check whether you run Fortinet FortiSandbox or Fortinet Fortisandbox Cloud. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Fortinet FortiSandbox
  • Fortinet Fortisandbox Cloud

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