Anti-Malware Security and Brute-Force Firewall <= 4.15.22 — Cross-Site Request Forgery

Am I affected?

• Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Anti-Malware Security and Brute-Force Firewall.
• No admin access? Run a passive check of your site. It reads public files only.
• No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

1. Update to version 4.15.23, or a newer patched version
2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
3. Watch Anti-Malware Security and Brute-Force Firewall to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to James Hooker.

The Anti-Malware Security and Brute-Force Firewall plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 4.15.22. This makes it possible for unauthenticated attackers to consume resource utilization (by performing a large number of scans simultaneously), via forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

• Advisorywordfence.com

Related CVEs

Timeline

1. May 25, 2015

   CVE published

   Severity low, CVSS 3.1

2. Nov 13, 2026

   Record last updated