CVE-2021-3351

MEDIUM 5.4CVE-2021-3351 · Published 02/08/2021 · updated 17/06/2026

In short

CVE-2021-3351 is a MEDIUM (CVSS 5.4) vulnerability affecting openplc (openplcproject).
Chance of exploitation in the next 30 days (EPSS): 0.52%, higher than 44.4% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
openplc openplcproject	`≤ 2016-03-14`	No fix yet

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

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