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Fencer Vulns
medium 5.4

CVE-2021-24014 json

Multiple instances of improper neutralization of input during web page generation vulnerabilities in FortiSandbox before 4.0.0 may allow an…

published 2021-08-04 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-10934

cvss
5.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits
0
none known

Summary

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.

Patch / fix

  • fortinet fortisandbox 3.2.3

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:X/RC:X
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

  • Fortinet Fortinet FortiSandbox

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.