Vulnerabilities / Anti-Malware Security and Brute-Force Firewall / WPSEC-2026-1632
Anti-Malware Security and Brute-Force Firewall <= 4.23.90 - Unauthenticated IP Address Spoofing to Brute-Force Protection and Firewall Bypass
Medium 5.3
CWE-348Fixed in 4.23.91
- ID
- WPSEC-2026-1632
- Plugin
- Anti-Malware Security and Brute-Force Firewall (gotmls)
- Affected
- all versions before 4.23.91
- Remediation
- Update to 4.23.91 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weakness
- CWE-348
- Usage
- Plugin Low · Affected versions Low among sites WPSec scans, 2026-10-25
- Attack surface
- Anti-Malware Security and Brute-Force Firewall on WPSec AttackSurface
- Fix released
- Published
Description
The Anti-Malware Security and Brute-Force Firewall plugin for WordPress is vulnerable to IP Address Spoofing in all versions up to, and including, 4.23.90 due to the client IP address being taken from the CF-Connecting-IP and X-Forwarded-For headers without checking whether the request came from a trusted proxy. This makes it possible for unauthenticated attackers to spoof their IP address and evade the plugin's brute-force login lockouts and firewall IP blocking.
References
- https://wpsec.com/vuln/WPSEC-2026-1632/
- https://plugins.svn.wordpress.org/gotmls/tags/4.23.91/
- https://wordpress.org/plugins/gotmls/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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