CVE-2023-0992: Getshieldsecurity Shield Security

Medium severity, CVSS 6.1. EPSS: 93% chance of exploitation in the next 30 days.

The Shield Security plugin for WordPress is vulnerable to stored Cross-Site Scripting in versions up to, and including, 17.0.17 via the 'User-Agent' header. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• Getshieldsecurity Shield Security: up to and including 17.0.17

Published 2023-06-09. Last modified 2026-06-17.