Medium severity · published Mar 10, 2026
CVE-2025-53608
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,…
4.8
CVSS
0.3%
EPSS
No
On KEV
Description
An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.2, FortiSandbox 4.4.0 through 4.4.7, FortiSandbox 4.2 all versions, FortiSandbox 4.0 all versions may allow an authenticated privileged attacker to execute code via crafted requests.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
FortiSandbox · Fortinet
5.0.0 through 5.0.2; 4.4.0 through 4.4.7; 4.2.1 through 4.2.8; 4.0.0 through 4.0.6 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-53608
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-53608
Vendor Advisory
https://fortiguard.fortinet.com/psirt/FG-IR-26-091
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