Shield Security <= 21.0.8 - Cross-Site Request Forgery to SQL Injection
| CVE | CVE-2026-0722 |
|---|---|
| CVSS | 6.5 (Medium) |
| Publicly Published | February 18, 2026 |
| Last Updated | February 19, 2026 |
| Researcher |
Dmitrii Ignatyev
- CleanTalk Inc
|
Description
The Shield Security plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 21.0.8. This is due to the plugin allowing nonce verification to be bypassed via user-supplied parameter in the 'isNonceVerifyRequired' function. This makes it possible for unauthenticated attackers to execute SQL injection attacks, extracting sensitive information from the database, via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Learn more about SQL Injection vulnerabilities and how to prevent them.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- research.cleantalk.org
- plugins.trac.wordpress.org
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Vulnerability Details for Shield Security – Smart Bot Blocking, Brute-Force Login Protection & File Scanning
| Software Type | Plugin |
|---|---|
| Software Slug | wp-simple-firewall (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 21.0.10, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Shield Security – Smart Bot Blocking, Brute-Force Login Protection & File Scanning
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