Improper Authentication in FortiWeb - CVE-2026-26035
Published: August 13, 2026
Vulnerability identifier: #VU142454
CSH Severity: High
CVSS v4: 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]
CVE-ID: CVE-2026-26035
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
The vulnerability exists due to improper authentication in the RADIUS type admin group. A remote unauthenticated attacker can login into the Fortiweb GUI/CLI with a random username and password.
Affected software
FortiWeb
How to mitigate CVE-2026-26035
Install update from vendor's website.
FortiWeb - addressed in versions 7.2.13, 7.4.12, 7.6.7, 8.0.3