CVE-2025-48840

Medium

Description

An authentication bypass by spoofing vulnerability in Fortinet FortiWeb 7.6.0 through 7.6.3, FortiWeb 7.4.0 through 7.4.8, FortiWeb 7.2 all versions, FortiWeb 7.0 all versions may allow a remote unauthenticated attacker to bypass hostname restrictions via a specially crafted request.

SeverityMedium
CVSS5.3
Exploit probability—
ProductFortinet Fortiweb
PublishedMar 10, 2026
First seenMar 10, 2026
Weakness typeCWE-290CWE-290

How to fix

Update
  • fortinet fortiweb7.4.9, 7.6.4 or later

Affected products

ProductAffected versionsFixed in
fortinet fortiweb7.0.0 ≤ v < 7.4.9, 7.6.0 ≤ v < 7.6.47.4.9, 7.6.4

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.