Improper access control in Webform REST - CVE-2026-16644
Published: July 23, 2026
Vulnerability identifier: #VU139192
CSH Severity: Medium
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-16644
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 check the parent webform's permissions for creating, viewing and updating permissions. A remote user can bypass implemented security restrictions and gain unauthorized access to the application.
Affected software
Webform REST
How to mitigate CVE-2026-16644
Install updates from vendor's website.
Webform REST - update to 4.1.0