{
 "id": "WPSEC-2026-1632",
 "url": "https://wpsec.com/vuln/WPSEC-2026-1632/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-1632/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-1632/index.md",
 "title": "Anti-Malware Security and Brute-Force Firewall <= 4.23.90 - Unauthenticated IP Address Spoofing to Brute-Force Protection and Firewall Bypass",
 "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.",
 "plugin": {
  "slug": "gotmls",
  "name": "Anti-Malware Security and Brute-Force Firewall",
  "full_name": "Anti-Malware Security and Brute-Force Firewall",
  "wordpress_org": "https://wordpress.org/plugins/gotmls/",
  "advisories_url": "https://wpsec.com/vuln/plugin/gotmls/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/gotmls"
 },
 "type": "BYPASS",
 "cwe": [
  "CWE-348"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 5.3,
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
  "severity": "Medium"
 },
 "affected": {
  "ranges": [
   {
    "from": null,
    "from_inclusive": true,
    "to": "4.23.91",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 4.23.91"
  ]
 },
 "introduced_in": null,
 "fixed_in": "4.23.91",
 "remediation": "Update to 4.23.91 or later.",
 "fix_released": "2026-10-24T03:02:46+00:00",
 "published": "2026-10-25T03:40:54+00:00",
 "updated": "2026-10-24T10:52:46.318794+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-1632/",
  "https://plugins.svn.wordpress.org/gotmls/tags/4.23.91/",
  "https://wordpress.org/plugins/gotmls/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/gotmls",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Low",
  "affected_versions": "Low",
  "as_of": "2026-10-25"
 }
}