{
 "id": "WPSEC-2026-0540",
 "url": "https://wpsec.com/vuln/WPSEC-2026-0540/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-0540/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-0540/index.md",
 "title": "Rank Math SEO <= 1.0.279 - Missing Authorization to Unauthenticated SEO Analyzer Results Deletion",
 "description": "The Rank Math SEO plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the SEO Analyzer's 'clear_results' handler in all versions up to, and including, 1.0.279. The handler ran whenever the SEO Analyzer was loaded, including on every admin-ajax.php request, and checked neither a capability nor a nonce. The SEO Analyzer module is enabled by default. This makes it possible for unauthenticated attackers to delete the site's stored SEO Analyzer results.",
 "plugin": {
  "slug": "seo-by-rank-math",
  "name": "Rank Math SEO",
  "full_name": "Rank Math SEO – AI SEO Tools to Dominate SEO Rankings",
  "wordpress_org": "https://wordpress.org/plugins/seo-by-rank-math/",
  "advisories_url": "https://wpsec.com/vuln/plugin/seo-by-rank-math/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/seo-by-rank-math"
 },
 "type": "NO AUTHORISATION",
 "cwe": [
  "CWE-862"
 ],
 "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": "1.0.31",
    "from_inclusive": true,
    "to": "1.0.280",
    "to_inclusive": false
   }
  ],
  "text": [
   "from 1.0.31 before 1.0.280"
  ]
 },
 "introduced_in": "1.0.31",
 "fixed_in": "1.0.280",
 "remediation": "Update to 1.0.280 or later.",
 "fix_released": "2026-10-06T12:43:17+00:00",
 "published": "2026-10-07T12:46:23+00:00",
 "updated": "2026-10-06T16:17:11.759068+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-0540/",
  "https://plugins.svn.wordpress.org/seo-by-rank-math/tags/1.0.280/",
  "https://wordpress.org/plugins/seo-by-rank-math/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/seo-by-rank-math",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Medium",
  "affected_versions": "Medium",
  "as_of": "2026-10-07"
 }
}