SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-24014

Multiple instances of improper neutralization of input during web page generation vulnerabilities in FortiSandbox before 4.0.0 may allow an unauthenticated attacker to perform an XSS attack via specifically crafted request parameters.

MEDIUM 6.1EPSS 0.61%

Does this matter?

Lower severity and a low EPSS score (0.61%). Track it; it rarely justifies an emergency change on its own.

Description

Multiple instances of improper neutralization of input during web page generation vulnerabilities in FortiSandbox before 4.0.0 may allow an unauthenticated attacker to perform an XSS attack via specifically crafted request parameters.

CVSS 3.1
6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
0.61% probability · 49th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-79
Affected
fortinet/fortisandbox
Source
psirt@fortinet.com
EPSS trend
0%3%5%26 October 2026: 0.61%26 October 202626 October 2026

EPSS 0.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.