What’s Vulnerable › Vulnerabilities

CVE-2021-3351

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-08-02 · updated 2026-06-17
• Weakness: CWE-79

Description

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

• OpenPLC: through 2016-03-14

References

• https://www.youtube.com/watch?v=eSAqXq4m8so
• https://www.youtube.com/watch?v=eSAqXq4m8so

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