WordPress security changelog
MEDIUM CVE-2026-0722 Deferred

Shield Security: SQL injection

Shield Security is affected by SQL injection. The vulnerable path is reachable without authentication. A successful request can alter database queries and expose or modify WordPress data.

CVE / CNA score 6.5 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Shield Security
Plugin slug
wp-simple-firewall
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Feb 19, 2026
Weakness
CWE-89 — Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

This CVE was published Feb 19, 2026 and is one of 6 known issues for this plugin.

What to do

Update, patch or deactivate.

Update Shield Security to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical 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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References

Primary and upstream sources