FortiSandbox XSS vuln v5.0.0-5.0.2 & v4.x (CWE-79)
CVE-2025-54353 Published on December 9, 2025
An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.2, FortiSandbox 4.4.0 through 4.4.7, FortiSandbox 4.2 all versions, FortiSandbox 4.0 all versions may allow an attacker to perform an XSS attack via crafted HTTP requests.
Vulnerability Analysis
CVE-2025-54353 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2025-54353 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2025-54353
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Affected Versions
Fortinet FortiSandbox:- Version 5.0.0, <= 5.0.2 is affected.
- Version 4.4.0, <= 4.4.7 is affected.
- Version 4.2.1, <= 4.2.8 is affected.
- Version 4.0.0, <= 4.0.6 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.