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

Source: https://junglewise.ai/threats/cve-2025-61886-an-improper-neutralization-of-input-during-web-page-generation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-14  
License: CC BY 4.0 with a link back

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](https://junglewise.ai/threats/technologies/fortisandbox), [Fortinet Fortisandbox Cloud](https://junglewise.ai/threats/technologies/fortisandbox-cloud). Vendors: [Fortinet](https://junglewise.ai/threats/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

## Related threats

- [Fortinet FortiSandbox cross-site scripting in web UI](https://junglewise.ai/threats/cve-2026-26248-a-improper-neutralization-of-input-during-web-page-generation)
- [Fortinet FortiSandbox authentication bypass in web management interface](https://junglewise.ai/threats/cve-2026-107656-an-authentication-bypass-using-an-alternate-path-or-channel)
- [Fortinet FortiSandbox hard-coded cryptographic key in API](https://junglewise.ai/threats/cve-2026-106172-a-use-of-hard-coded-cryptographic-key-vulnerability-in-fortinet)
- [Fortinet FortiSandbox persistent denial of service in GUI and CLI](https://junglewise.ai/threats/cve-2026-106170-an-uncaught-exception-vulnerability-cwe-248-vulnerability-in)
- [Fortinet FortiSandbox command injection in HTTP requests](https://junglewise.ai/threats/cve-2026-84387-fortinet-fortisandbox-command-injection-in-http-requests)