#VU123728 Authentication bypass by spoofing in FortiWeb - CVE-2025-48840

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Main Vulnerability Database Vulnerabilities #VU123728

#VU123728 Authentication bypass by spoofing in FortiWeb - CVE-2025-48840

Published: March 10, 2026


Vulnerability identifier: #VU123728
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-48840
CWE-ID: CWE-290
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
FortiWeb
Software vendor:
Fortinet, Inc

Description

The vulnerability allows a remote attacker to bypass hostname restrictions.

The vulnerability exists due to improper validation of user-supplied input. A remote attacker can perform spoofing attack and bypass hostname restrictions.


Remediation

Install updates from vendor's website.

External links