CVE-2025-61886

Name: CVE-2025-61886
Creator: NVD / NIST
Published: 2026-04-14T16:16:31.8+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.27%

Last modified Jun 17, 2026

CVE-2025-61886 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

EPSS Probability

0.27%

19.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Fortinet	Fortisandbox	>= 5.0.0, < 5.0.5
Fortinet	Fortisandbox Cloud	5.0.4

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-109Vendor Advisory

Timeline

Published: Apr 14, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-61886?

How severe is CVE-2025-61886?

CVE-2025-61886 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.

How do I fix CVE-2025-61886?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-61886?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST