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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
paultgoodchild Shield: Blocks Bots, Protects Users, and Prevents Security Breaches
Default version status: unaffected
0 to ≤ 21.0.8affected
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/f53d9579-56e9-41aa-b6b7-2472734ee719?source=cve ↗
- https://plugins.trac.wordpress.org/browser/wp-simple-firewall/tags/21.0.8/src/lib/src/ActionRouter/CaptureAjaxAction.php#L42 ↗
- https://plugins.trac.wordpress.org/browser/wp-simple-firewall/tags/21.0.8/src/lib/src/ActionRouter/Actions/BaseAction.php#L125 ↗
- https://plugins.trac.wordpress.org/browser/wp-simple-firewall/tags/21.0.8/src/lib/src/Tables/DataTables/LoadData/Traffic/BuildTrafficTableData.php#L114 ↗
- https://research.cleantalk.org/cve-2026-0722/ ↗
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3439494%40wp-simple-firewall&new=3439494%40wp-simple-firewall&sfp_email=&sfph_mail= ↗