Improper access control in Webform - CVE-2026-96366
Published: September 25, 2026 / Updated: September 25, 2026
Vulnerability identifier: #VU152216
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-96366
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to the affected module does not sufficiently validate a managed file upload element when processing a new submission. A remote attacker can access managed files they are not authorized to view.
Affected software
Webform
How to mitigate CVE-2026-96366
Install updates from vendor's website.
Webform - addressed in versions 6.2.12, 6.3.1