CVE-2021-3351: Openplcproject OpenPLC

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

OpenPLC runtime V3 through 2016-03-14 allows stored XSS via the Device Name to the web server's Add New Device page.

Affected products

• Openplcproject OpenPLC: up to and including 2016-03-14

Published 2021-08-02. Last modified 2026-06-17.