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Shield Security vulnerabilities
Shield Security has 8 known vulnerabilities in this database. The most recent published record is dated 19 Feb 2026.
- Known vulnerabilities
- 8
- Active installs
- 30,000+
- Latest version
- 22.2.3
- Last updated
- 21 Sep 2026
- Most recent
- 19 Feb 2026
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| Cross-site scripting (XSS) CVE-2026-0561 | Medium 6.1 | Up to 21.0.8 | Fixed in a later version (latest 22.2.3) | 19 Feb 2026 |
| SQL injection CVE-2026-0722 | Medium 6.5 | Up to 21.0.8 | Fixed in a later version (latest 22.2.3) | 19 Feb 2026 |
| Broken access control CVE-2025-15370 | Medium 4.3 | Up to 21.0.9 | Fixed in a later version (latest 22.2.3) | 16 Jan 2026 |
| Cross-site scripting (XSS) CVE-2024-7313 | Medium 6.1 | Before 20.0.6 | Fixed in 20.0.6 | 26 Aug 2024 |
| Cross-site request forgery (CSRF) CVE-2024-4344 | Medium 4.3 | Up to 19.1.13 | Fixed in a later version (latest 22.2.3) | 2 Jun 2024 |
| Cross-site scripting (XSS) CVE-2023-0993 | Medium 4.3 | Up to 17.0.17 | Fixed in a later version (latest 22.2.3) | 9 Jun 2023 |
| Cross-site scripting (XSS) CVE-2023-0992 | High 7.2 | Up to 17.0.17 | Fixed in a later version (latest 22.2.3) | 9 Jun 2023 |
| Cross-site scripting (XSS) CVE-2022-0211 | Medium 4.8 | Before 13.0.6 | Fixed in 13.0.6 | 21 Feb 2022 |
Read the published descriptions
- CVE-2026-0561, 19 Feb 2026
- 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. CVE record
- CVE-2026-0722, 19 Feb 2026
- 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. CVE record
- CVE-2025-15370, 16 Jan 2026
- The Shield: Blocks Bots, Protects Users, and Prevents Security Breaches plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 21.0.9 via the MfaGoogleAuthToggle class due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Subscriber-level access and above, to disable Google Authenticator for any user. CVE record
- CVE-2024-7313, 26 Aug 2024
- The Shield Security WordPress plugin before 20.0.6 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin. CVE record
- CVE-2024-4344, 2 Jun 2024
- The Shield Security - Smart Bot Blocking & Intrusion Prevention Security plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 19.1.13. This is due to missing or incorrect nonce validation on the exec function. This makes it possible for unauthenticated attackers to disable pin protection for the admin interface of the plugin via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. CVE record
- CVE-2023-0993, 9 Jun 2023
- The Shield Security plugin for WordPress is vulnerable to Missing Authorization on the 'theme-plugin-file' AJAX action in versions up to, and including, 17.0.17. This allows authenticated attackers to add arbitrary audit log entries indicating that a theme or plugin has been edited, and is also a vector for Cross-Site Scripting via CVE-2023-0992. CVE record
- CVE-2023-0992, 9 Jun 2023
- 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. CVE record
- CVE-2022-0211, 21 Feb 2022
- The Shield Security WordPress plugin before 13.0.6 does not sanitise and escape admin notes, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html is disallowed. CVE record
What to do if you run Shield Security
If you run Shield Security, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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