Improper access control in Webform REST - CVE-2026-16644

 

Improper access control in Webform REST - CVE-2026-16644

Published: July 23, 2026


Vulnerability identifier: #VU139192
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2026-16644
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: imclean
Affected software:
Webform REST

Detailed vulnerability description

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.


How to mitigate CVE-2026-16644

Install updates from vendor's website.

Sources