CVE-2022-43955

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-04-11 · updated 2026-06-17
Weakness: CWE-79

Description

An improper neutralization of input during web page generation [CWE-79] in the FortiWeb web interface 7.0.0 through 7.0.3, 6.3.0 through 6.3.21, 6.4 all versions, 6.2 all versions, 6.1 all versions and 6.0 all versions may allow an unauthenticated and remote attacker to perform a reflected cross site scripting attack (XSS) via injecting malicious payload in log entries used to build report.

Affected products

Fortinet FortiWeb: from 6.0.0 through 6.2.7; from 6.3.0 before 6.3.22; from 6.4.0 through 6.4.2; from 7.0.0 before 7.0.4 — fixed in 6.3.22, 7.0.4

How to fix

Upgrade to a fixed version: Fortinet FortiWeb 6.3.22, 7.0.4. Check the vendor advisory for mitigations.

References

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