{
 "id": "WPSEC-2026-1008",
 "url": "https://wpsec.com/vuln/WPSEC-2026-1008/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-1008/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-1008/index.md",
 "title": "Security & Malware scan by CleanTalk <= 2.189 - Unauthenticated Rate Limit Bypass via User-Agent Header",
 "description": "The Security Plugin, Firewall & Malware Scanner with Auto Removal plugin for WordPress is vulnerable to a rate limit bypass via the User-Agent header in all versions up to, and including, 2.189, due to the plugin's rate limiter building its counter key from the client-supplied User-Agent header together with the IP address, and updating the counter non-atomically. This makes it possible for unauthenticated attackers to evade the plugin's request rate limits, including the limits on two-factor authentication code submissions and the leaked-password change form, by sending a different User-Agent with each request. This weakens the plugin's brute-force protection.",
 "plugin": {
  "slug": "security-malware-firewall",
  "name": "Security & Malware scan by CleanTalk",
  "full_name": "Security Plugin, Firewall & Malware Scanner with Auto Removal",
  "wordpress_org": "https://wordpress.org/plugins/security-malware-firewall/",
  "advisories_url": "https://wpsec.com/vuln/plugin/security-malware-firewall/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/security-malware-firewall"
 },
 "type": "BYPASS",
 "cwe": [
  "CWE-307"
 ],
 "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": "2.176",
    "from_inclusive": true,
    "to": "2.190",
    "to_inclusive": false
   }
  ],
  "text": [
   "from 2.176 before 2.190"
  ]
 },
 "introduced_in": "2.176",
 "fixed_in": "2.190",
 "remediation": "Update to 2.190 or later.",
 "fix_released": "2026-10-14T10:30:48+00:00",
 "published": "2026-10-15T10:51:54+00:00",
 "updated": "2026-10-14T14:18:02.342587+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-1008/",
  "https://plugins.svn.wordpress.org/security-malware-firewall/tags/2.190/",
  "https://wordpress.org/plugins/security-malware-firewall/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/security-malware-firewall",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Low",
  "affected_versions": "Low",
  "as_of": "2026-10-15"
 }
}