CVE-2026-35063 HIGH

CVE-2026-35063: Missing Authorization in OpenPLC_V3

Vendor Openplc_V3
Product OpenPLC_V3
Weakness CWE-862 · Missing authorization
Published April 9, 2026
Last update April 10, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

OpenPLC_V3 REST API endpoint checks for JWT presence but never verifies the caller's role. Any authenticated user with role=user can delete any other user, including administrators, by specifying their user ID or they can create new accounts with role=admin, escalating to full administrator access.

Key dates

02Disclosure timeline

April 9, 2026 CVE published
April 10, 2026 Record updated