CVE-2026-0561

MEDIUM
2026-02-19 [email protected]
6.1
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:03 vuln.today
CVE Published
Feb 19, 2026 - 07:17 nvd
MEDIUM 6.1

Tags

WordPress XSS

Description

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.

Analysis

Shield Security plugin for WordPress versions up to 21.0.8 contains a reflected XSS vulnerability in the 'message' parameter that allows unauthenticated attackers to inject malicious scripts through specially crafted links. Successful exploitation requires tricking users into clicking a malicious link, resulting in execution of arbitrary JavaScript in their browser context. …

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Remediation

Within 30 days: Identify affected systems running all and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

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Priority Score

31
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +30
POC: 0

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CVE-2026-0561 vulnerability details – vuln.today
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