CVE-2026-0561mediumCWE-79

CVE-2026-0561: medium-severity vulnerability in paultgoodchild Shield: Blocks Bots, Protects…

Shield Security <= 21.0.8 - Unauthenticated Reflected Cross-Site Scripting via 'message' Parameter

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28Vexday Risk Score

Patch soon. It has a working public exploit.

ssvc Attendcvss 6.1epss 0.7%
The Shield Security plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'message' parameter in all versions up to, and including, 21.0.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected products
paultgoodchild · Shield: Blocks Bots, Protects Users, and Prevents Security Breaches
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