Unauthenticated path traversal in FortiWeb

1) Path traversal

EUVDB-ID: #VU118555

Risk: Critical

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: CVE-2025-64446

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote attacker can send a specially crafted HTTP request and execute arbitrary commands on the system.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

FortiWeb: 7.0.0 - 8.0.1

CPE2.3

• cpe:2.3:a:fortinet:fortiweb:7.0.11:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortiweb:7.2.11:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortiweb:7.4.9:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortiweb:7.6.4:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortiweb:8.0.1:*:*:*:*:*:*:*

External links

https://www.fortiguard.com/psirt/FG-IR-25-910

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.