CVE-2021-36188

6.1 mediumEPSS 0.7%

Medium (6.1) in fortinet fortiweb. EPSS 0.7% chance of exploitation in the next 30 days.

A improper neutralization of input during web page generation ('cross-site scripting') in Fortinet FortiWeb version 6.4.1 and below, 6.3.15 and below allows attacker to execute unauthorized code or commands via crafted GET parameters in requests to login and error handlers

Severity

CVSS 3.1

6.1 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 52% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2021-12-08
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

fortinet:fortiweb

References

https://fortiguard.com/advisory/FG-IR-21-118
https://fortiguard.com/advisory/FG-IR-21-118

Check your stack JSON